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Institut für Photonik und Quantenelektronik
 

Institute of Photonics and Quantum Electronics – Publications by W. Freude
(until 2008: High-Frequency and Quantum Electronics Laboratory) 

Books and Reviewed Publications (except [202], [203], [212], [213], [224], [234], [282]) in Journals (and Conference Proceedings, up to 2010) [1] – [337]  
 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2002, 2000, 1990, 1980, 1970

Books
[327] Freude, W.; Füllner, C.; Harter, T.; Koos, C.; Randel, S.: 'Wireless THz transmission using a Kramers-Kronig receiver'. In: Kürner, T.; Mittleman, D. M.; Nagatsuma, T. (Eds): 'THz Communications Paving the Way Towards Wireless Tbps', Springer Series in Optical Sciences 2021, Vol. 234, Chapter 48, pp. 481–485. ISBN 978-3-030-73738-2
[312] Kemal, J. N.; Marin-Palomo, P.; Karpov, M.; Anderson, M. H.; Freude, W.; Kippenberg, T. J.; Koos, C.: 'Chip-based frequency combs for wavelength-division multiplexing applications'. In: Willner, A. E. (Ed): 'Optical Fiber Telecommunications VII', 7th Ed. World Scientific 2020, Chapter 2, pp. 51–102. ISBN 978-981-4699-22-8
[243] Deniel, Q.; Saliou, F.; Chanclou, P.; Marazzi, L.; Parolari, P.; Brunero, M.; Gatto, A.; Martinelli, M.; Gavioli, G.; Iachelini, A,; Cimmino, A.; Brenot, R.; Barbet, S.; Lelarge, F.; ODuill, S.; Gebrewald, S.; Koos, C.; Freude, W.; Leuthold, J.: 'Last-Mile Technologies: New WDM Access Proposals, Devices and Experiments'. In: Pisco, M. (Ed.): 'Lasers and Electro-Optics Research and Technology', Nova Science Publishers, 2013, Chapter 7. ISBN-10: 1628084251 ISBN-13: 978-1628084252
[235] Leuthold, J.; Freude, W.: 'Optical OFDM and Nyquist Multiplexing'. In: Kaminow, I. P.; Li, Tingye; Willner, A. E. (Eds.): 'Optical Fiber Telecommunications VI B. Systems and Networks', 6th Ed. Elsevier (Imprint: Academic Press), Amsterdam 2013, Chapter 9, pp. 381–432
[223] Bonk, R.; Vallaitis, T.; Freude, W.; Leuthold, J.; Penty, R. V., Borghesani, A.; Lealman, I. F.: 'Linear Semiconductor Optical Amplifiers'. In: Venghaus, H.; Grote, N. (Eds.): 'Fibre Optic Communication — Key Devices'. Springer Series in Optical Sciences Vol. 161, Berlin 2012, Chapter 12, pp. 511–571
[69] Freude, W.; Chakam, G.-A.; Brosi, J.-M.; Koos, C.: 'Microwave Modelling of Photonic Crystals'. In: Busch, K.; Lölkes, S.; Wehrspohn, R.;  Föll, H. (Eds.): 'Photonic Crystals – Advances in Design, Fabrication, and Characterization'. Wiley VCH, Berlin 2004, Chapter 19, pp.198–214
[59] Freude, W.: 'Vielmodenfasern (Multimode Fibres)'. In: Voges, E.; Petermann, K. (Eds.): 'Handbuch der optischen Kommunikationstechnik (Handbook of Optical Communications)'. Springer-Verlag, Berlin 2002, Chapter 5, pp. 214–260
[32] Grau, G. und Freude, W.: 'Optische Nachrichtentechnik. Eine Einführung (Optical Communications)'. Springer-Verlag, Berlin 1991 (Since 1997 out of print; corrected electronic reprint available 1998, 1999, 2005. Send e-mail to W. Freude)

Habilitation
Freude, W.: 'Analyse von Lichtwellenleitern aus dem Nah- und Fernfeld (Analysis of Light Waveguides from Nearfield and Farfield Data)'. Habilitationsschrift für das Fachgebiet 'Lichtwellen-Meßtechnik (Lightwave Metrology)'. Fakultät für Elektrotechnik, Universität Karlsruhe, 04.06.1986
The full text of this work is available: (3,241,203 bytes)

Dissertation
Freude, W.: 'Messung der Statistik eines Gunn-Oszillator-Signals und Vergleich mit einem Rechenmodell (Measurement of the Statistics of a Gunn Oscillator Signal and Comparison with a Numerical Model)'. Dissertationsschrift (PhD Thesis) der  Fakultät für Elektrotechnik, Universität Karlsruhe, 03.02.1975
An abridged version of this thesis is available: (998,014 bytes)


    1970
  1. Freude, W.: 'Ein Ratiodetektor im Mikrowellenbereich', AEÜ, 1973, 27, pp. 389–396. Erratum: Fünfte Zeile nach Gl. (1), statt |S12|»|S23| lies |S21|»|S32|; Gl. (13) und (17), statt (AB)1/2 lies (AB / (A+B))1/2; erste Zeile nach Gl. (13), statt (AB / (A+B))1/2 lies (AB)1/2 / (A+B); Gl. (34), statt S lies 2S. The full text of this paper is available: Download
  2. Freude, W.: 'Messung der Statistik eines Gunn-Oszillator-Signals und Vergleich mit einem Rechenmodell', AEÜ, 1976, 30, pp. 209–218. The full text of this paper is available: Download
  3. Freude, W. and Buchholz, A.: 'Inexpensive equipment for driving GaAs lasers with 100 ps risetime pulses', Electron. Lett., 1976, 12, pp. 598–599
  4. Freude, W.: 'Wideband analyser for measurement of probability densities and distributions', Electron. Lett., 1976, 12, pp. 630–631. Please note the following type setting error: In Eq. (3), instead of (x(A2-x2)1/2)-1, read  (p(A2-x2)1/2)-1.
  5. Freude, W.: 'Performance of packaged fast silicon photodetectors in a broadband coaxial mount', AEÜ, 1977, 31, pp. 167–170. Erratum: ibid., 1981, 35, p. 130. The full text of this paper is available: Download
  6. Freude, W.: 'Measurement of the thermal impedance of injection lasers', AEÜ, 1977, 31, pp. 478–480. The full text of this paper is available: Download
  7. Freude, W.: 'Monomode operation of direct modulated GaAlAs DHS injection lasers from 260 Mbit/s up to 1.4 Gbit/s', AEÜ, 1978, 32, pp. 105–110. The full text of this paper is available: Download

    1980
  8. Freude, W.: 'Investigation of dark current shot noise in CdS/CuInSe2-photodiodes with a lock-in technique', AEÜ, 1980, 34, pp. 305–312. The full text of this paper is available: Download
  9. Freude, W.: 'Far-field profiling of multimode optical fibres', Electron. Lett., 1981, 17, pp. 385–387
  10. Freude, W. and Grau, G. K.: 'Estimation of modal noise for arbitrary connectors, fibres and sources', AEÜ, 1982, 36, pp. 91–93. The full text of this paper is available: Download
  11. Bartelt, H. O., Lohmann, A. W., Freude, W., and Grau, G. K.: 'Mode analysis of optical fibres using computer-generated matched filters', Electron. Lett., 1983, 19, pp. 247–249. Printer's correction: ibid., 19, p. 560. Please note the following additional typesetting error: In (3) the numerator 2pa should read 2pa2.
  12. Freude, W., Fritzsche, C., and Grau, G. K.: 'Bandwidth estimation for multimode optical fibers using speckle patterns', Appl. Opt., 1983, 22, pp. 3319–3320
  13. Freude, W. and Ashley, J. R.: Comments and reply on 'The measurement of noise in microwave transmitters', IEEE Trans. MTT, 1984, 32, pp. 559–561
  14. Freude, W., Fritzsche, C., and Lu, Shan-da: 'Speckle interferometry for spectral analysis of laser sources and multimode optical waveguides', 10th European Conf. Opt. Commun., Stuttgart, 1984, pp. 216–217
  15. Freude, W. and Sharma, A.: 'Refractive-index profile and modal dispersion prediction for a single-mode optical waveguide from its far-field radiation pattern', Techn. Dig. Symp. Opt. Fiber Meas., Boulder, 1984, pp. 29–32
  16. Freude, W.: 'Impulse dispersion in a multimode optical fiber from its far-field radiation pattern', Appl. Opt., 1984, 23, pp. 4209–4211
  17. Freude, W. and Sharma, A.: 'Refractive-index profile and modal dispersion prediction for a single-mode optical waveguide from its far-field radiation pattern', J. Lightwave Technol., 1985, LT-3, pp. 628–634. Printer's correction: ibid., 1986, LT-4, p. 375. Please note the following additional typesetting errors: Two equations above (18), ... = åm=1M cm c2 ... should read ... = – åm=1M cm c 2 ... ; in (19) replace 8p2 by 4p2.
  18. Freude, W., Grau, G., and Wüppermann, B.: 'Computer-generated holograms for fibre mode excitation and analysis (invited)', Int. Conf. Microelect. Fiber Optics, Chandigarh, 1985. Published in: Bajpai, R. P. (Ed.): Proc. Int. Conf. Microelect. Fiber Optics, 1987, pp. 825–833
  19. Freude, W., Fritzsche, C., Grau, G., and Lu Shan-da: 'Speckle interferometry for spectral analysis of laser sources and multimode optical waveguides', J. Lightwave Technol., 1986, LT-4, pp. 64–72. Printer's correction: ibid., 1986, LT-4, p. 694. Please note the following additional typesetting errors: In (1) the denominator <E(d P2(fs,r))>r should read <(E(d P(fs,r)))2>r ; in (B2) <d P(fs,r) d P(fs+f,r)>r should read <E(d P(fs,r) d P(fs+f,r))>r .
  20. Freude, W., Grau, G., and Wüppermann, B.: 'Computer-generated holograms for mode excitation and measurement of the modal power distribution in multimode fibres', J. Inst. Elect. Telecomm. Engin., 1986, 32, pp. 243–252 (invited)
  21. Freude, W. and Richter, H.: 'Refractive-index profile determination of single-mode fibres by far-field power measurements at 1300 nm', Electron. Lett., 1986, 22, pp. 945–947
  22. Freude, W. und Grau, G. K.: 'Synthetische Hologramme', MIOP (Mikrowellentechnologie und Optoelektronik), Tagungsband der Konferenz für Höchstfrequenztechnologie, Wiesbaden, 1987
  23. Chen He-ming and Freude, W.: 'Tables of integrals: Misprint in a convolution type integral with Gauss-Laguerre functions', Electron. Lett., 1987, 23, pp. 966–967. Printer's correction: ibid., 1987, 23, p. 1211
  24. Freude, W., Grau, G. K., Liebler, W., and Wüppermann, B.: 'Computer-generated holograms with error compensation', Appl. Opt., 1988, 27, pp. 138–146
  25. Freude, W., Yao Hui-hai, and He Zhi-jian: 'Propagation constant and waveguide dispersion of single-mode fibers measured from the far-field', J. Lightwave Technol., 1988, LT-6, pp. 318–321
  26. Freude, W.: 'Fast calibration of an infrared vidicon', Rev. Sci. Instr., 1988, 59, pp. 332–335
  27. Freude, W.: 'Lightwave measurement techniques', in Krause, B. and Schreiner, A. (Eds.): HECTOR (HEeterogeneous ComputersTOgetheR, a joint project of IBM and the University of Karlsruhe. Vol. I: New ways in education and research. Springer-Verlag, Berlin 1988, pp. 284–296
  28. Freude, W., Huber, R.-D. und Matouschek, E.: 'Dosisunsicherheiten bei der Bestrahlung von Harnblasenkarzinomen mit Nd:YAG-Laserlicht', Z. Urol. Nephrol., 1988, 81, pp. 481–485
  29. Freude, W. and Chen He-ming: 'Computer-generated holograms with error compensation for recording phase-shifted DFB-laser corrugations', Appl. Opt., 1988, 27, pp. 5103–5110
  30. Freude, W., Sharma, E. K., and Sharma, A.: 'Propagation constant of single-mode fibers measured from the mode-field radius and from the bending loss', J. Lightwave Technol., 1989, 7, pp. 225–228

    1990
  31. Freude, W.: 'Positive definite and unimodal Gauss-Hermite expansion of probability density function by its moments', AEÜ, 1991, 45, pp. 89–95. The full text of this paper is available: Download
  32. Grau, G. und Freude, W.: 'Optische Nachrichtentechnik. Eine Einführung (Optical Communications)'. Springer-Verlag, Berlin 1991 (Since 1997 out of print; corrected electronic reprint available 1998, 1999, 2005. Send e-mail to W. Freude)
  33. Li Tong-ning and Freude, W.: 'Taper coupling of laser diode to singlemode fibre: influence of fibre field shape', Electron. Lett., 1991, 27, pp. 1202–1203. Printer's correction: ibid., 1991, 27, p. 1599
  34. Freude, W.: 'Meßverfahren der optischen Nachrichtentechnik. Tagungsbericht', ntz, 1992, 45, pp. 412–414
  35. Freude, W.: 'Interferometrische Verfahren zur Dispersionsmessung an Lichtwellenleitern', Nachrichtentech., Elektron., 1992, 42, pp. 175–179
  36. Freude, W. and Grau, G. K.: 'Rayleigh-Sommerfeld and Helmholtz-Kirchhoff integrals: Application to the scalar and vectorial theory of wave propagation and diffraction', J. Lightwave Technol., 1995, 13, pp. 24–32
  37. Freude, W.: 'Transport solutions for the SCH quantum-well laser diode: Comment', IEEE J. Quantum Electron., 1996, 32, pp. 2173–2175
  38. Freude, W. and Sukhoivanov, I. A.: 'Carrier transport phenomena in SCH quantum-well laser diodes', Proc. 2nd Intern. Conf. on Theory and Technique of Information Transmission, Tuapse (Rußland), 17.–19.9.1996, pp. 192–193
  39. Freude, W. and Sukhoivanov, I. A.: 'Carrier transport phenomena in SCH quantum-well laser diodes for fibre optic telecommunication systems', Proc. 6th Intern. Crimean Conf. on Microwave and Telecommunication Technology, Sevastopol (Ukraine), 16.–19.9.1996, pp. 303–307
  40. Freude, W., Braun, R.-P., Großkopf, G. and Schmidt, F.: 'Microwave generation and transmission with chirping laser diodes and dispersive fibres', Techn. Digest Intern. Topical Meeting on Microwave Photonics (MWP'97), Schloß Hugenpoet, Duisburg/Essen, 3.–5.9.1997, pp. 261–264
  41. Freude, W. and Sukhoivanov, I. A.: 'Carrier transport effects in SCH-laser diodes', Radiotekhnika, 1997, Vol. 102, 93–99 (in Russian; ISSN 0485-8972, ed. by Kharkov State Technical University of Radio Electronics, Ukraine). Translated into English: Telecommunication and Radio Engineering 52 (1998) 93–96 (Begell House)
  42. Freude, W., Palai, P., and Sukhoivanov, I. A.: 'Modelling of chirping laser diodes for microwave generation and transmission over dispersive fibres', Techn. Digest Intern. Topical Meeting on Microwave Photonics (MWP'98), Princeton, NJ, 12.-14.10.1998, pp. 95-98
  43. Freude, W., Chakam, G.-A. and Hurm, V.: 'Microwave photonics for broadband wireless access', Intern. Conf. on Fiber Optics and Photonics PHOTONICS-98, Indian Institute of Technology, Delhi, 14.–18.12.1998 (invited)
  44. Freude, W., Chakam, G.-A. and Hurm, V.: 'Microwave photonics for broadband wireless access', Proc. SPIE Int. Soc. Opt. Eng. 3666 (1999) 226–231 (invited)
  45. Krieg, M.; Lysak, V.; Freude, W.: 'Extraction of model parameters for quantum well laser diodes from DC and small signal measurements', Intern. Workshop on Laser and Fiber Optic Network Modelling (LFNM'99), Kharkov State Technical University of Radio Electronics, Kharkov, 25.05.1999. Radiotekhnika Vol. 110 (1999) 14–24 (in English; ISSN 0485-8972, ed. by Kharkov State Technical University of Radio Electronics, Ukraine) (invited)
  46. Chakam, G.-A. and Freude, W.: 'Optically controlled phased array antenna', Proc. 24th Intern. Conf. on Infrared and Millimeter Waves (IR/MMW'99), Monterey, Canada, 05.–10.09.1999, Paper TH-D1 (invited)
    The full text of this paper is available: (535,465 bytes)
  47. Chakam, G.-A. and Freude, W.: 'Coplanar phased array antenna with optical feeder and photonic bandgap structure', Proc. Intern. Topical Meeting on Microwave Photonics, Post-Deadline Papers (MWP'99), Melbourne, 17.–19.11.1999, pp. 1–4
    The full text of this paper is available: (1,390,135 bytes)

    2000
  48. Chakam, G.-A.; Freude, W.: 'Photonic crystals for optically controlled phased array antennas', Proc.Topical Symposium on Millimeter Waves (TSMMW 2000), Yokosuka, Japan, 23.–24.03.2000, pp. 95–98 (invited)
  49. Schnarrenberger, M., Sotobashi, H., Chujo, W. and Freude, W.: 'Novel intersymbol interference reduction technique by bit synchronized pi / 2 phase shift', Proc. Institute of Electronics, Information and Communication Engineers (IEICE Japan) Spring Conference, Hiroshima, 28.–31.03.2000, 1 page
    The full text of this paper is available: (155,350 bytes)
  50. Chakam, G.-A.; Freude, W.: 'Broadband wireless access with optically controlled phased array antenna', Proc. First Joint Symposium on Opto- and Microelectronic Devices and Circuits (SODC 2000), Nanjing, China, 10.–12.04.2000, pp. 110–113 (invited)
  51. Chakam, G.-A.; Freude, W.: 'Coplanar phased array patch antenna with optical feeder', Proc. Millennium Conference on Antennas & Propagation (AP 2000), Davos, Switzerland, 09.–14. 04.2000, Paper 1491
  52. Freude, W.; Kremp, T.: 'Numerical modelling of non-linear optical waveguides', Proc. Intern. Symposium on Systems, Signals, and Electronics (ISSSE'01), Tokyo, Japan, 24.–27.07.2001 (invited)
  53. Chakam, G.-A.; Freude, W.: 'Aperture coupled microstrip phased-array patch antenna with optical feeder network', Proc. Mikrowellen und Optonik / Microwaves and Optronics (MIOP'01), Stuttgart, 08.–10.05.2001

    2002
  54. Kremp, T.; Killi, A.; Rieder, A.; Freude, W.: 'Split-step wavelet collocation method for nonlinear optical pulse propagation', IEICE Trans. Electron. Vol. E85-C, No. 3 (2002) 534–543 (Special Issue on Signals, Systems and Electronics Technology)
    The full text of this paper is available: (482.481 bytes)
  55. Freude, W.; Kremp, T.: New numerical tools for fast photonic network simulators. Conf. Proc. of Second Joint Symposium on Opto- and Microelectronic Devices and Circuits (SODC 2002), Stuttgart, 10.-16. March 2002 (invited)
  56. Kremp, T.; Freude, W.: Adaptive multiresolution split-step wavelet collocation method. 10th International Workshop on Optical Waveguide Theory and Numerical Modelling, Nottingham, UK, April 5–6, 2002, p. 26
  57. Kremp, T.; Killi, A.; Rieder, A.; Freude, W.: Adaptive multiresolution split-step wavelet collocation method for nonlinear optical pulse propagation. Proc. Conf. Lasers and Electro-Optics (CLEO/IQEC 2002), Long Beach (CA), May 19–24, 2002. Session CThO vol. 1 p. 533
  58. Freude, W.; Kremp, T.: Fast photonic network modelling with a new wavelet method. Proc. of the 4th Intern. Workshop on Laser and Fiber Optic Networks Modelling (LFNM 2002), National University of Radio Electronics, Kharkov, Ukraine, June 3–5, 2002, pp. 116–119 (invited)
  59. Freude, W.: 'Vielmodenfasern (Multimode Fibres)'. In: Voges, E.; Petermann, K. (Eds.): 'Handbuch der optischen Kommunikationstechnik (Handbook of Optical Communications)'. Springer-Verlag, Berlin 2002, Chapter 5, pp. 214–260
  60. Chakam, G.-A.; Rumberg, A.; Freude, W.: Modelling photonic bandgap structures in the microwave region near 10 GHz. Technical Digest Intern. Topical Meeting on Microwave Photonics (MWP'02), Awaji, Japan, November 5–8, 2002, Paper P4-13, pp. 333–336
  61. Chakam, G.-A.; Vogel, W.; Yilmaz, H.; Berroth, M.; Freude, W.: Microstrip phased array patch antenna based on a liquid crystal phase shifter for optically generated RF-signals. Technical Digest Intern. Topical Meeting on Microwave Photonics (MWP'02), Awaji, Japan, November 5–8, 2002, Paper P4-13, pp. 265–268
  62. Chakam, G.-A.; Dzeik, H.; Freude, W.: A new elecro-optical phase shifter for optically generated microwave signals. Technical Digest Intern. Topical Meeting on Microwave Photonics (MWP'02), Awaji, Japan, Paper P4-13, pp. 149–152
  63. Chakam, G.-A.; Freude, W.; Poulton, C.; von Freymann, G.; Wegener, M.; Fujii, M.: Polarisation dependent coupling in ring resonator filters. Proc. 15th Annual Meeting of the IEEE Lasers and Electro-Optics Society (LEOS 2002), Glasgow, Scotland, UK, November 10–14, 2002, Paper ThN4, pp. 748–749
    The full text of this paper is available: (337,559 bytes)
  64. Kremp, T.; Freude, W.: 'Fast wavelet collocation method for WDM system parameter optimization', Technical Digest Optical Fiber Communication Conference (OFC'03), Atlanta (GA), USA, 23.–28.03.2003. Paper MF1 vol.1 pp. 1–2
  65. Fujii, M.; Freude,W.; Russer, P.: 'Efficient high-spatial-order FDTD analysis of 3D optical ring resonator filters', 19th Annual Review of Progress in Applied Computational Electromagnetics (ACES'03), Monterey (CA), USA, 24.–28.03.2003, pp. 739–744
  66. Fujii, M.; Freude,W.; Russer, P.: 'Wavelet-collocation finite-difference analysis of 3D optical ring resonator',  Technical Digest Conference on Lasers and Electro-Optics Europe (CLEO-Europe/EQEC'03), Laser 2003 World of Photonics, International Congress Centre Munich, Germany, 23.–27.06.2003. Topic: CJ – Optical Technologies for Communication, Switching and Interconnects. Session: Filters and Gratings, p. 515
  67. Yilmaz, H.; Chakam, G.-A.; Breuel, A.; Berroth, M.; Freude, W.: 'Microstrip Line Fed Patch Antenna With Liquid Crystal Phase Shifter For Optically Generated RF-Signals.' Technical Digest Intern. Topical Meeting on Microwave Photonics (MWP'03), Budapest, Hungary, September 10–12, 2003, pp. 359–362
  68. Chakam, G.-A.; Freude, W.: 'High gain conductor-backed and coplanar-fed patch antenna with periodic structures.' Proceedings Intern. ITG Conference on Antennas (INICA'03), Berlin, Germany, 17.–19.09.2003, pp. 65–68

    2004
  69. Freude, W.; Chakam, G.-A.; Brosi, J.-M.; Koos, C.: 'Microwave Modelling of Photonic Crystals'. In: Busch, K.; Lölkes, S.; Wehrspohn, R.;  Föll, H. (Eds.): 'Photonic Crystals – Advances in Design, Fabrication, and Characterization'. Wiley VCH, Berlin 2004, Chapter 19, pp.198–214
  70. Fujii, M.; Tahara, M; Sakagami, I.; Freude, W.; Russer, P.: 'High-order FDTD and auxiliary differential equation formulation of optical pulse propagation in 2D Kerr and Raman nonlinear dispersive media', IEEE J. Quantum Electron. 40 (2004) 175–182
  71. Freude, W.; Kremp, T.; Goncharova, N.; Poulton, C.: 'Modeling long-haul WDM transmission in nonlinear optical fibers using a fast split-step wavelet collocation method.' Conf. Proc. of Progress in Electromagnetics Research Symposium 2004 (PIERS 2004), Pisa, Italy, 28–31.03.2004 (invited)
  72. Stalzer, H.; Cosceev, A.; Sürgers, C.; v. Löhneysen, H.; Brosi, J.-M.; Chakam, G.-A.; Freude, W.: 'Inhomogeneous magnetization of a superconducting film measured with a gradiometer,' Appl. Phys. Lett. 84 (2004) 1522–1524
  73. Freude, W.; Poulton, C.; Koos, C.; Brosi, J.; Glöckler, F.; Wang, J.; Chakam, G.-A.; Fujii, M.: 'Design and fabrication of nanophotonic devices', Proc. 6th Intern. Conf. on Transparent Optical Networks (ICTON'04), July 4–8, 2004, Wroclaw, Poland. Paper Mo.A.4 vol. 1 pp. 4–9 (invited)
  74. Poulton, C. G.; Koos, C.; Freude, W.; Fujii, M.: 'Attenuation of optical strip waveguides with rough sidewalls', Proc. 29th Intern. Conf. on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW/THz'04), Karlsruhe, Germany, 27.09.–01.10.2004 pp. 141–142 
  75. Freude, W.; Brosi, J.; Glöckler, F.; Koos, C.; Poulton, C.; Wang, J.; Fujii, M.: 'High-index optical waveguiding structures', Conf. Proc. Optical Society of America Annual Meeting (OSA'04), Rochester (NY), USA, October 10–14, 2004, paper TuS1 (invited)
  76. Poulton, C. G.; Koos,  C.; Müller, M.; Glöckler, F.; Wang, J.; Fujii, M.; Leuthold, J.; Freude, W.: 'Sidewall roughness and deformations in high index-contrast waveguides and photonic crystals', Proc. 17th Annual Meeting of the IEEE Lasers and Electro-Optics Society (LEOS 2004), Puerto Rico, USA, November 7–11, 2004 vol. 2 pp. 949–950
  77. Kremp, T.; Freude, W.: 'DWDM transmission optimization in nonlinear optical fibres with a fast split-step wavelet collocation method', Proc. 7th Intern. Conf. on Optoelectronics, Fiber Optics & Photonics (Photonics 2004), Kochi, India, November 9–11, 2004 (invited)
  78. Freude, W.; Poulton, C.; Brosi, J.; Koos, C.; Glöckler, F.; Wang, J.; Fujii, M.: 'Integrated optical waveguide devices: Design, modeling and fabrication', Proc. 16th Asia Pacific Microwave Conference (APMC’04), New Delhi, India, December 15–18, 2004 (invited)

    2005
  79. Kremp, T.; Freude, W.: 'Fast split-step wavelet collocation method for WDM system parameter optimization', J. Lightwave Technol. 23 (2005) 1491–1502
  80. Fujii, M.; Omaki, N.; Tahara, M.; Sakagami, I.; Poulton, C.; Freude, W.; Russer, P.: 'Optimization of nonlinear dispersive APML ABC for the FDTD analysis of optical solitons', IEEE J. Quantum Electron. 41 (2005) 448–454
  81. Freude, W.; Poulton, C.; Koos, C.; Brosi, J.; Fujii, M.; Müller, M.; Leuthold, J.; Pfrang, A.; Schimmel, Th.: 'Nano-optical waveguide devices with random deformations and nonlinearities', Conf. Dig. 3rd Intern. Conf. on Materials for Advanced Technologies (ICMAT'05), Symposium F: Nano-Optics and Microsystems, Singapore, July 3–8, 2005 (invited). Paper F-2-IN3
  82. Poulton, C. G.; Müller, M.; Freude, W.: 'Scattering from sidewall deformations in photonic crystals.' J. Opt. Soc. Am. B 22 (2005) 1211–1220
  83. Maitra, A.; Wang, J.; Hügel, O.; Poulton, C.; Leuthold, J.; Freude, W.: 'All-optical flip-flop based on an active stopband-tapered DFB structure,' Digest OSA Topical Meeting on Optical Amplifiers and Their Applications (OAA'05), Budapest, Hungary, 7–10 August 2005, paper WD3
  84. Leuthold, J.; Freude, W.; Böttger, G.; Wang, J.; Vorreau, P.; Marculescu, A.: 'Trends in the field of all-optical wavelength conversion and regeneration for communication up to 160 Gb/s', Proc. 31th European Conf. Opt. Commun. (ECOC'05), Glasgow, September 25–29, 2005, Paper Tu3.3.6 vol. 2 pp. 209–210 (invited)
  85. Maitra, A.; Poulton, C. G.; Wang, J.; Leuthold, J.; Freude, W.: 'Low switching threshold using nonlinearities in stopband-tapered waveguide Bragg gratings',  IEEE J. Quantum Electron. 41 (2005) 1303–1308
  86. Pfeiffer, Th.; Hehmann, J.; Schmuck, H.; Freude, W.; Vandewege, J.; Yanagisawa, H.: 'Monitoring and protecting the optical layer in FTTH networks', Proceedings of the FTTH Conference & Expo, Las Vegas (NV), USA, October 3–6, 2005

    2006
  87. Fujii, M,; Koos, C.; Poulton, C.; Sakagami, I.; Leuthold, J.; Freude, W.: 'A simple and rigorous verification technique for nonlinear FDTD algorithm by optical parametric four-wave mixing', Microwave and Optical Technol. Lett. 48 (2006) 88–91
    The full text of this paper is available: Download
  88. Fujii, M; Koos, C.; Poulton, C.; Leuthold, J.; Freude, W.: 'Nonlinear FDTD analysis and experimental validation of four-wave mixing in InGaAsP/InP racetrack micro-resonators', IEEE Photon. Technol. Lett. 18 (2006) 361–363
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  89. Sartorius, B.; Bornholdt, C.; Slovak, J.; Schlak, M.; Schmidt, Ch.; Marculescu, A.; Vorreau, P.; Tsadka, S.; Freude, W.; Leuthold, J.: All-optical DPSK wavelength converter based on MZI with integrated SOAs and phase shifters.  Technical Digest Optical Fiber Communication Conference (OFC'06), Anaheim (CA), USA, 05.–10.03.2006. Paper OWS6
  90. Freude, W.; Poulton, C. G.; Koos, C.; Brosi, J.; Fujii, M.; Pfrang, A.; Schimmel, Th.; Müller, M.; Leuthold, J.: 'Nanostrip and photonic crystal waveguides: The modelling of imperfections', Proc. 15th International Workshop on Optical Waveguide Theory and Numerical Modelling (OWTNM'06), Varese, Italy, April 20–21, 2006 (invited), pp. 1–2
  91. Fujii, M.; Koos, C.; Poulton, C.; Leuthold, J.; Freude, W.: FDTD modelling and experimental verification of FWM in semiconductor micro-resonators', Proc. 15th International Workshop on Optical Waveguide Theory and Numerical Modelling (OWTNM'06), Varese, Italy, April 20–21, 2006, p. 79 
  92. Freude, W.; Maitra, A.; Wang, J. Koos, Ch.; Poulton, C.; Fujii, M.; Leuthold, J.: 'All-optical signal processing with nonlinear resonant devices', Proc. 8th Intern. Conf. on Transparent Optical Networks (ICTON'06), June 18–22, 2006, Nottingham, UK. Paper We.D2.1, vol. 2, pp. 215–219 (invited)
  93. Leuthold, J.; Freude, W.; Böttger, G.; Wang, J.; Marculescu, A.; Vorreau, P.; Bonk, R.: 'All-optical regeneration', Proc. 8th Intern. Conf. on Transparent Optical Networks (ICTON'06), June 18–22, 2006, Nottingham, UK.  Paper Mo.C1.1, vol. 1, pp. 28–31 (invited)
  94. Wang, J.; Poulton, C. G.; Maitra, A.; Cabot, S.; Jaques, J.; Freude, W.; Leuthold, J.: 'Dynamics of linewidth-enhancement factor in semiconductor optical amplifiers', Digest OSA Topical Meeting on Optical Amplifiers and Their Applications (OAA'06), Whistler, Canada, 25–28 June 2006, Paper OTuC3
  95. Brosi, J.-M.; Freude, W.; Leuthold, J.; Petrov, A. Yu.; Eich, M.: 'Broadband slow light in a photonic crystal line defect waveguide', Technical Digest OSA Topical Meeting on Slow and Fast Light (SL'06), Washington (DC), USA, 23–26 July 2006, Paper MD6
  96. Leuthold, J.; Freude, W.; Vorreau, P.; Marculescu, A.; Wang, J.; Böttger, G.: 'All-optical signal processing for phase-sensitive modulation formats', Asia-Pacific Optical Communications (APOC'06), Gwangju, Korea, September 3–7, 2006. Paper APOC 03. Proc. SPIE Int. Soc. Opt. Eng. 6353 (2006) 635311 (invited tutorial) 
  97. Koos, C.; Poulton, C.; Jacome, L.; Zimmermann, L.; Leuthold, J.; Freude, W.: 'Ideal trajectory for ultracompact low-loss waveguide bends', Proc. 32th European Conf. Opt. Commun. (ECOC'06), Cannes, September 24–28, 2006, Paper Tu1.4.6
  98. Klamouris, C.; Böttger, G.; Hübner, M.; Dreschmann, M.; Paulsson, K.; Bett, A. W.; Kueng, T.; Becker, J.; Freude, W.; Leuthold, J.: 'Optically powered platform with Mb/s transmission over a single fiber', Proc. 32th European Conf. Opt. Commun. (ECOC'06), Cannes, September 24–28, 2006, Paper We3.P.170, Vol. 3, pp. 461–462 
  99. Freude, W.; Leuthold, J.; Vorreau, P.; Marculescu, A.; Wang, J.; Böttger, G.: 'All-optical processing of novel modulation formats using semiconductor optical amplifiers.' Conf. Proc. Optical Society of America Annual Meeting (OSA'06), Rochester (NY), USA, October 8–12, 2006. Paper FTuV1 (invited tutorial)
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  100. Wang J.; Jiao Y.; Bonk R.; Freude W.; Leuthold J.: 'Regenerative properties of bulk and quantum dot SOA based all-optical Mach-Zehnder interferometer DPSK wavelength converters', Digest Intern. Conf. on Photonics in Switching (PS'06), Herakleion (Crete), Greece, October 16–18, 2006. Paper O4.5
  101. Vorreau, P.; Marculescu, A.; Wang, J.; Böttger, G.; Sartorius, B.; Bornholdt, C.; Slovak, J.; Schlak, M.; Schmidt, Ch.; Tsadka, S.; Freude, W.; Leuthold, J.: 'Cascadability and regenerative properties of SOA all-optical DPSK wavelength converters', IEEE Photon. Technol. Lett. 18 (2006) 1970–1972
  102. Koos, C.; Fujii, M.; Poulton, C. G.; Steingrueber, R.; Leuthold, J.; Freude, W.: 'FDTD-modelling of dispersive nonlinear ring resonators: Accuracy studies and experiments', IEEE J. Quantum Electron. 42 (2006) 1215–1223
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  103. Poulton, C. G.; Koos, C.; Fujii, M.; Pfrang, A.; Schimmel, Th.; Leuthold, J.; Freude, W.: 'Radiation modes and roughness loss in high index-contrast waveguides', IEEE J. Sel. Topics Quantum Electron. 12 (2006) 1306–1321
  104. Fujii, M.; Maitra, A.; Poulton, C.; Leuthold, J.; Freude, W.: 'Non-reciprocal transmission and Schmitt trigger operation in strongly modulated asymmetric WBGs', Opt. Express 14 (2006) 12782–12793
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    2007
  105. Koos, C.; Jacome, L.; Poulton, C.; Leuthold, J.; Freude, W.: 'Nonlinear silicon-on-insulator waveguides for all-optical signal processing', Opt. Express 15 (2007) 5976–5990
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  106. Fujii, M.; Takashima, T.; Maitra, A.; Leuthold, J.; Freude, W.; Poulton, C.: 'Nonreciprocal Transmission and Low-Threshold Bistability in Strongly Modulated Asymmetric Nonlinear WBGs', Proc. Conf. Lasers and Electro-Optics (CLEO/IQEC 2007), Baltimore (MD), May 06–11, 2007. Session CThFF - Spatial Nonlinear Effect, Paper CThFF5, pp. 1–2
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  107. Wang, J.; Maitra, A.; Poulton, C. G.; Freude, W.; Leuthold, J.: 'Temporal dynamics of the alpha factor in semiconductor optical amplifiers', J. Lightw. Technol. 25 (2007) 891–900
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  108. Koos, C.; Poulton, C. G.; Zimmermann, L.; Jacome, L.; Leuthold, J.; Freude, W.: 'Ideal contour trajectories for single-mode operation of low-loss overmoded waveguides', IEEE Photon. Technol. Lett. 19 (2007) 819–821
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  109. Dyroff, C.; Zahn, A.; Freude, W.; Jänker, B.; Werle, P.: 'A multipass cell design for Stark-modulation spectroscopy', Appl. Opt. 46 (2007) 4000–4007
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  110. Dyroff, C.; Weibring, P.; Fried, A.; Richter, D.; Walega, J. G.; Zahn, A.; Freude, W.; Werle, P.: 'Stark-enhanced diode-laser spectroscopy of formaldehyde using a modifed Herriott-type multipass cell', Appl. Phys. B (2007) DOI: 10.1007/s00340-007-2671-1
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  111. Koos, C.; Vallaitis, T.; Bolles, B.-A.; Bonk, R.; Freude, W.; Laemmlin, M.; Meuer, C.; Bimberg, D.; Ellis, A.; Leuthold, J.: 'Gain and phase dynamics in an InAs/GaAs quantum dot amplifier at 1300 nm,' Proc. European Conf. Lasers and Electro-Optics (CLEO-Europe/IQEC 2007), Munich, Germany, June 17–22, 2007
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  112. Shulika, O.; Freude, W.; Leuthold, J.: 'Two-dimensional simulation of semiconductor lasers and semiconductor optical amplifiers using ATLAS,' Proc. Intern. Workshop on Optoelectronic, Physics and Technology (OPT'07), June 20-22, 2007, Kharkov, Ukraine, pp. 34–38
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  113. Freude, W.; Koos, C.; Poulton, C. G.; Fujii, M.; Leuthold, J.: 'Minimizing roughness loss for ultra-compactly bent high index-contrast waveguides',  Proc. 9th Intern. Conf. on Transparent Optical Networks (ICTON'07), July 1–5, 2007, Rome, Italy. Paper We.C2.1, vol. II, pp. 184–187 (invited)
  114. Sygletos, S.; Spyropoulou, M.; Vorreau, P.; Bonk, R.; Tomkos, I.; Freude, W.; Leuthold, J.: 'Multi-wavelength regenerative amplification based on quantum-dot semiconductor optical amplifiers', Proc. 9th Intern. Conf. on Transparent Optical Networks (ICTON'07), July 1–5, 2007, Rome, Italy. Paper We.D2.5, vol. II, pp. 234–237 (invited)
  115. Leuthold, J.; Wang, J.; Vallaitis, T.; Koos, Ch.; Bonk, R.; Marculescu, A.; Vorreau, P.; Sygletos, S.; W. Freude: 'New approaches to perform all-optical signal regeneration', Proc. 9th Intern. Conf. on Transparent Optical Networks (ICTON'07), July 1–5, 2007, Rome, Italy. Paper We.D2.1, vol. II, pp. 222–225  (invited)
  116. Pina, J. F.; da Silva, H. J. A.; Monteiro, P. N.; Wang, J.; Freude, W.; Leuthold, J.: 'Cross-gain modulation-based 2R regenerator using quantum-dot semiconductor optical amplifiers at 160 Gbit/s',  Proc. 9th Intern. Conf. on Transparent Optical Networks (ICTON'07), July 1–5, 2007, Rome, Italy. Paper Tu.A1.8, vol. I, pp. 106–109
  117. Pina, J.F.; Silva, H.J.A.; Monteiro, P.N.; Wang, J.; Freude, W.; Leuthold, J.: 'Performance evaluation of wavelength conversion at 160 Gbit/s using XGM in Quantum-dot semiconductor optical amplifiers in MZI configuration,' Proc. IEEE LEOS Photonics in Switching (PS'07), Aug 19–22, 2007, San Francisco (CA), USA. Paper TuP10, pp. 77–78
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  118. Böttger, G.; Dreschmann, M.; Röger, M.; Hübner, M.; Klamouris, C.; Bett, A. W.; Kueng, T.; Becker, J.; Freude, W.; Leuthold, J.: 'Optically powered video camera link,' Proc. 33th European Conf. Opt. Commun. (ECOC'07), Berlin, Germany, September 16–20, 2007. Paper 09.6.3
  119. Koos, C.; Brosi, J.; Waldow, M.; Freude, W.; Leuthold, J.: 'Silicon-on-insulator modulators for next-generation 100 Gbit/s-Ethernet,' Proc. 33th European Conf. Opt. Commun. (ECOC'07), Berlin, Germany, September 16–20, 2007. Paper P056
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  120. Marculescu, A.; Wang, J.; Li, J.; Vorreau, P.; Zadok, S.; Ben Ezra, S.; Tsadka, S.; Freude, W.; Leuthold, J.: 'Pattern effect removal technique for semiconductor optical amplifier-based wavelength conversion,' Proc. 33th European Conf. Opt. Commun. (ECOC'07), Berlin, Germany, September 16–20, 2007. Paper 03.4.6
  121. Vallaitis, T.; Koos, C.; Bolles, B.-A.; Bonk, R.; Freude, W.; Laemmlin, M.; Meuer, C.; Bimberg, D.; Leuthold, J.: 'Quantum dot semiconductor optical amplifier at 1.3 μm for ultra-fast cross-gain modulation,' Proc. 33th European Conf. Opt. Commun. (ECOC'07), Berlin, Germany, September 16–20, 2007. Paper 08.6.5
  122. Böttger, G.; Dreschmann, M.; Klamouris, C.; Hübner, M.; Röger, M,; Kueng, T.; Becker, J.; Freude, W.; Leuthold, J.; Bett, A. W.: 'Optically powered video camera link', Conf. Proc. Optical Society of America Annual Meeting (OSA'07), San Jose (CA), USA, September 16–20, 2007. Paper SME3 (invited)
  123. Brosi, J.-M.; Leuthold, J.; Freude, W.: 'Microwave-frequency experiments validate optical simulation tools and demonstrate novel dispersion-tailored photonic crystal waveguides', J. Lightw. Technol. 25 (2007) 2502–2510
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  124. Wang, J.; Maitra, A.; Freude, W.; Leuthold, J.: 'Ultra-fast optical processing with chirping semiconductor optical amplifiers', Proc. SPIE Asia-Pacific Optical Communications (APOC'07), Wuhan, China, November 1–5, 2007. Paper 6782-6
  125. Wang, J.; Marculescu, A.; Li, J.; Vorreau, P.; Tzadok, S.; Ben Ezra, S.; Tsadka, S.; Freude, W.; Leuthold, J.: 'Pattern effect removal technique for semiconductor optical amplifier-based wavelength conversion,' IEEE Photon. Technol. Lett. 19 (2007) 1955–1957
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    2008
  126. Böttger, G.; Dreschmann, M.; Klamouris, C.; Hübner, M.; Röger, M.; Bett, A. W.; Kueng, T.; Becker, J.; Freude, W.; Leuthold, J.: 'An optically powered video camera link,' IEEE Photon. Technol. Lett. 20 (2008) 39–41
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  127. Vallaitis, T.; Koos, C.; Bonk, R.; Freude, W.; Laemmlin, M.; Meuer, C.; Bimberg, D.; Leuthold, J.: 'Slow and fast dynamics of gain and phase in a quantum dot semiconductor optical amplifier,' Opt. Express 16 (2008) 170–178
  128. Bonk, R.; Vorreau, P.; Sygletos, S.; Vallaitis, T.; Wang, J.; Freude, W.; Brenot, R.; Lelarge, F.; Duan, G. H.; Meuer, C.; Liebich, S.; Laemmlin, M.; Bimberg, D.; Leuthold, J.: 'An interferometric configuration for performing cross-gain modulation with improved signal quality,' Technical Digest Optical Fiber Communication Conference (OFC'08), San Diego (CA), USA, 24.–28.02.2008. Paper JWA70, vol. 2, pp. 207–210
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  129. Koos, C.; Vorreau, P.; Dumon, P.; Baets, R.; Esembeson, B.; Biaggio, I.; Michinobu, T.; Diederich, F.; Freude, W.; Leuthold, J.: ''Highly-nonlinear silicon photonics slot waveguide,' Optical Fiber Communication Conference (OFC'08), San Diego (CA), USA, 24.–28.02.2008. Postdeadline Paper PDP25
  130. Brosi, J.-M.; Koos, Ch.; Andreani, L. C.; Waldow, M.; Leuthold, J.; Freude, W.: 'High-speed low-voltage electro-optic modulator with a polymer-infiltrated silicon photonic crystal waveguide,' Opt. Express 16 (2008) 4177–4191
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  131. Freude, W.; Brosi, J.-M.; Koos, C.; Vorreau, P.; Andreani, L. C.; Dumon, P.; Baets, R.; Esembeson, B.; Biaggio, I.; Michinobu, T.; Diederich, F.; Leuthold, J.: 'Silicon-organic hybrid (SOH) devices for nonlinear optical signal processing,' Proc. 10th Intern. Conf. on Transparent Optical Networks (ICTON'08), June 22–26, 2008, Athens, Greece.  Paper Tu.C2.1, vol. 2, pp. 84–87 (invited)
  132. Sygletos, S.; Bonk, R.; Vorreau, P.; Vallaitis, T.; Wang, J.; Freude, W.; Leuthold, J.; Meuer, C.; Bimberg, D.; Brenot, R.; Lelarge, F.; Duan, G.H.: 'A wavelength conversion scheme based on a quantum-dot semiconductor optical amplifier and a delay interferometer,'  Proc. 10th Intern. Conf. on Transparent Optical Networks (ICTON'08), June 22–26, 2008, Athens, Greece.  Paper We.B2.5, vol. 2, pp. 149–152 (invited)
  133. Leuthold, J.; Freude, W.; Sygletos, S.; Vorreau, P.; Bonk, R.; Hillerkuss, D.; Tomkos, I.; Tzanakaki, A.; Kouloumentas, C.; Richardson, D.J.; Petropoulos, P.; Parmigiani, F.; Ellis, A.; Cotter, D.; Ibrahim, S.; Weerasuriya, R.: 'An all-optical grooming switch to interconnect access and metro ring networks,' Proc. 10th Intern. Conf. on Transparent Optical Networks (ICTON'08), June 22–26, 2008, Athens, Greece.  Paper We.C3.4, vol. 3, pp. 207–210 (invited)
  134. Vorreau, P.; Parmigiani, F.; Mukasa, K.; Ibsen, M.; Petropoulos, P.; Richardson, D.J.; Ellis, A.; Freude, W.; Leuthold, J.: 'TDM-to-WDM conversion from 130 Gbit/s to 3 × 43 Gbit/s using XPM in a NOLM switch,' Proc. 10th Intern. Conf. on Transparent Optical Networks (ICTON'08), June 22–26, 2008, Athens, Greece.  Postdeadline Paper Th.Pd.2, vol. 2, pp. 207–210
  135. Bonk, R.; Sygletos, S.; Vorreau, P.; Vallaitis, T.; Wang, J.; Freude, W.; Leuthold, J.; Brenot, R.; Lelarge, F.; Duan, G.H.;: 'Performance analysis of an interferometric scheme for media with limited cross-phase modulation nonlinearity,'  Proc. 6th Intern. Symp. on Communication Systems, Networks and Digital Signal Processing (CNSDSP'08), July 25–25, 2008, Graz, Austria, pp. 487–491
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  136. Vorreau, P.; Kouloumentas, Ch.; Provost, L.; Tomkos, I.; Freude, W.; Leuthold, J.: 'Simultaneous processing of 43 Gb/s WDM channels by a fiber-based dispersion-managed 2 R regenerator,' 34th European Conf. Opt. Commun. (ECOC'08), Sept 21–25, 2008, Brussels, Belgium. Paper Th.1.B.3
  137. Vallaitis, T.; Koos, C.; Esembeson, B.; Biaggio, I.; Michinobu, T.; Diederich, F.; Dumon, P.; Baets, R.; Freude, W.; Leuthold, J.: 'Highly nonlinear silicon photonics slot waveguides without free carrier absorption related speed-limitations,' 34th European Conf. Opt. Commun. (ECOC'08), Sept 21–25, 2008, Brussels, Belgium. Paper Th.2.D.6
  138. Bonk, R.; Meuer, C.; Vallaitis, T.; Sygletos, S.; Vorreau, P.; Ben-Ezra, S.; Tsadka, S.; Kovsh, A. R.; Krestnikov, I. L.; Laemmlin, M.; Bimberg, D.; Freude, W.; Leuthold, J.: 'Single and multiple channel operation dynamics of linear quantum-dot semiconductor optical amplifier,' 34th European Conf. Opt. Commun. (ECOC'08), Sept 21–25, 2008, Brussels, Belgium. Paper Th.1.C.2
  139. Wang, J.; Marculescu, A.; Li , J.; Zhang, Z.; Freude, W.; Leuthold, J.: 'All-optical vestigial-sideband signal generation and pattern effect mitigation with an SOA based red-shift optical filter wavelength converter,' 34th European Conf. Opt. Commun. (ECOC'08), Sept 21–25, 2008, Brussels, Belgium. Paper We.2.C.6
  140. Vorreau, P.; Hillerkuss, D.; Parmigiani, F.; Sygletos, S.; Bonk, R.; Petropoulos, P.; Richardson, D.; Zarris, G.; Simeonidou, D.; Klonidis, D.; Tomkos, I.; Weerasuriya, R.; Ibrahim, S.; Ellis, A.; Morais, R.; Monteiro, R.; Ben Ezra, S.; Tsadka, S.; Freude, W.; Leuthold J.: '2R/3R optical grooming switch with time-slot interchange,' 34th European Conf. Opt. Commun. (ECOC'08), Sept 21–25, 2008, Brussels, Belgium. Postdeadline Paper Th.3.F.4
  141. Leuthold, J.; Freude, W.; Becker, J.; Roeger, M.; Hoh, M.; Boettger, G.; Hübner, M.; Hehmann, J.; Pfeiffer, Th.: 'Optically Powered Networks', Optical Society of America Annual Meeting (OSA'08), Rochester (NY), USA, October 19–23, 2008. Paper JWC2 (invited)
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  142. Koos, C.; Brosi, J.-M. ; Vorreau, P.; Vallaitis, T.; Dumon, P.; Baets, R.; Esembeson, B.; Biaggio, I.; Michinobu, T.; Diederich, T.; Freude, W.; Leuthold, J.: 'Silicon-organic hybrid (SOH) devices for optical signal processing', Optical Society of America Annual Meeting (OSA'08), Rochester (NY), USA, October 19–23, 2008. Paper FMG6 (invited)
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  143. Li, J.; Wang, J.; Marculescu, A.; Vorreau, P.; Zhang, Z.; Freude, W.; Leuthold, J.: 'All-Optical SOA-based wavelength converter assisted by optical filters with wide operation wavelength and large dynamic input power range,' Proc. Asia-Pacific Optical Communications (APOC'08), Hangzhou, China, Oct 26-30, 2008. Paper 7135-82
  144. Ellis, A. D.; Cotter, D.; Ibrahim, S.; Weerasuriya, R.; Chow, C. W.; Leuthold, J.; Freude, W.; Sygletos, S.; Vorreau, P.; Bonk, R.; Hillerkuss, D.; Tomkos, I.; Tzanakaki, A.; Kouloumentas, C.; Richardson, D. J.; Petropoulos, P.; Parmigiani, F.; Zarris, G.; Simeonidou, D.: 'Optical interconnection of core and metro networks,' J. Opt. Netw. 7 (2008) 928–935 (invited)
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  145. Kouloumentas, Ch.; Vorreau, P.; Provost, L.; Petropoulos, P.; Freude, W.; Leuthold, J.; Tomkos, I.: 'All-fiberized dispersion-managed multichannel regeneration at 43 Gb/s,' IEEE Photon. Technol. Lett. 20 (2008) 1854–1856
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  146. Fujii, M.; Freude, W.; Leuthold, J.: 'Numerical prediction of minimum sub-diffraction-limit image generated by silver surface plasmon lenses,' Opt. Express 16 (2008) 21039–21052
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  147. Thumm, M.; Freude, W.; Grau, G.; Leuthold, J.; Wiesbeck, W.; Zwick, T.: 'Geschichte der Hochfrequenztechnik an der Universität Karlsruhe (TH),' Frequenz 62 (2008) 266–273
  148. Röger, M.; Böttger, G.; Dreschmann, M.; Klamouris, C.; Huebner, M.; Bett, A. W.; Becker, J.; Freude, W.; Leuthold, J.: 'Optically powered fiber networks,' Opt. Express 16 (2008) 21821–21834, in Focus Issue on 'Optics for Energy' (invited)

    2009
  149. Petropoulos, P.; Provost, L.; Parmigiani,  F.; Kouloumentas, Ch.; Finot, C.; Mukasa, K.; Vorreau, P.; Tomkos, I.; Sygletos, S.: Freude, W.; Leuthold, J.; Ellis, A. D.;  Richardson, D. J.: 'Simultaneous 2R regeneration of WDM signals in a single optical fibre,' Proc. IEEE/LEOS Winter Topicals Meeting, Innsbruck, Austria, January 12–14, 2009, 252-253, Paper WC2.2 (invited)
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  150. Koos, C.; Vorreau, P.; Vallaitis, T.; Dumon, P.; Bogaerts, W.; Baets, R.; Esembeson, B.; Biaggio, I.; Michinobu, T.; Diederich, F.; Freude, W.; Leuthold, J.: 'All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,' Nature Photon. 3 (2009) 216–219. Published online: 15 March 2009. Commented in News & Views by Tom Baehr-Jones and Michael Hochberg: 'Slot machine'
  151. Fujii, M.; Freude, W.; Leuthold, J.: 'Dispersion relation and loss of sub-wavelength confined mode of metal-dielectric-gap optical waveguides,' IEEE Photon. Technol. Lett. 21 (2009) 362-364
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  152. Vallaitis, T.; Heine, C.; Bonk, R.; Freude, W.; Leuthold, J.; Koos, C.; Esembeson, B.; Biaggio, I.; Michinobu, T.; Diederich, F.; Dumon, P.; Baets, R.: 'All-optical wavelength conversion at 42.7 Gbit/s in a 4 mm long silicon-organic hybrid waveguide,' Proc. Optical Fiber Communication Conference (OFC'09), San Diego (CA), USA, 22.–26.03.2009. Paper OWS3
  153. Marculescu, A.; Sygletos, S.; Li, J.; Karki, D.; Hillerkuß, D.; Ben-Ezra, S.; Tsadka, S.; Freude, W.; Leuthold, J.: 'RZ to CSRZ format and wavelength conversion with regenerative properties,' Proc. Optical Fiber Communication Conference (OFC'09), San Diego (CA), USA, 22.–26.03.2009. Paper OThS1
  154. Parmigiani, F.; Vorreau, P.; Provost, L. A.; Mukasa, K.; Takahashi, M.; Tadakuma, M.; Petropoulos, P.; Richardson, D. J.; Freude, W.; Leuthold, J.: '2R regeneration of two 130 Gbit/s channels within a single fiber,' Proc. Optical Fiber Communication Conference (OFC'09), San Diego (CA), USA, 22.–26.03.2009. Paper JThA56
  155. Bonk, R.; Brenot, R.; Meuer, C.; Vallaitis, T.; Tussupov, A.; Rode, J. C.; Sygletos, S.; Vorreau, P.; Lelarge, F.; Duan, G.-H.; Krimmel, H.-G.; Pfeiffer, T.; Bimberg, D.; Freude, W.; Leuthold, J.: '1.3/1.5 µm QD-SOAs for WDM/TDM GPON with extended reach and large upstream/downstream dynamic range,' Proc. Optical Fiber Communication Conference (OFC'09), San Diego (CA), USA, 22.–26.03.2009. Paper OWQ1
  156. Zarris, G.; Parmigiani, F.; Hugues-Salas, E.; Weerasuriya, R.; Hillerkuss, D.; Amaya Gonzalez, N.; Spyropoulou, M.; Vorreau, P.; Morais, R.; Ibrahim, S. K.; Klonidis, D.; Petropoulos, P.; Ellis, A. D.; Monteiro, P.; Tzanakaki, A.; Richardson, D.; Tomkos, I.; Bonk,  R.; Freude, W.; Leuthold, J.; Simeonidou, D.: 'Field trial of WDM-OTDM transmultiplexing employing photonic switch fabric-based buffer-less bit-interleaved data grooming and all-optical regeneration,'  Proc. Optical Fiber Communication Conference (OFC'09), San Diego (CA), USA, 22.–26.03.2009. Postdeadline Paper PDPC10
  157. Dreschmann, M.; Röger, M.; Hübner, M.; Becker, J.; Freude, W.; Leuthold, J.; Schäfer, V.: 'Lichtblick – Intelligente Kamera-Sensoren via Glasfaser mit Strom versorgen,' elektronikJOURNAL 06/2009, pp. 70–72
  158. Bonk, R.; Sygletos, S.; Brenot, R.; Vallaitis, T.; Marculescu, A.; Vorreau, P.; Li J.; Freude, W.; Lelarge, F.; Duan, G.-H.; Leuthold, J.: 'Optimum filter for wavelength conversion with QD-SOA,' Proc. Conf. on Lasers and Electro-Optics (CLEO/IQEC 2009), Baltimore (Maryland), USA, May 31–June 05, 2009. Paper CMC6
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  159. Biaggio, I.; Scimeca, M. L.; Esembeson, B.; Michinobu, T.; Diederich, F.; Koos, C.; Freude, W.; Leuthold, J.: 'Vapor deposited small molecules as an organic nonlinear optical cladding for silicon on insulator technology,' Proc. Conf. on Lasers and Electro-Optics (CLEO/IQEC 2009), Baltimore (Maryland), USA, May 31–June 05, 2009. Paper CFQ3
    The full text of this paper is available: Download 
  160. Freude, W.; Röger, M.; Dreschmann, M.; Huebner, M.; Bett, A. W.; Becker, J.; Leuthold, J.: 'An optically powered fibre network for heterogeneous subscribers,' Proc. 11th Intern. Conf. on Transparent Optical Networks (ICTON'09), June 28 – July 2, 2009, Ponta Delgada, Island of São Miguel, Portugal.  Paper Mo.B2.1, vol. 1, pp. 1–4 (invited)
  161. Sygletos, S.; Bonk, R.; Vallaitis, T.; Marculescu, A.; Vorreau, P.; Li, J.; Brenot, R.; Lelarge, F.; Duan, G. H.; Freude, W.; Leuthold, J.: 'Optimum filtering schemes for performing wavelength conversion with QD-SOA,' Proc. 11th Intern. Conf. on Transparent Optical Networks (ICTON'09), June 28 – July 2, 2009, Ponta Delgada, Island of São Miguel, Portugal. Paper Mo.C1.3, vol. 1, pp. 1–4 (invited)
  162. Leuthold, J.; Bonk, R.; Vorreau, P.; Sygletos, S.; Hillerkuss, D.; Freude, W.; Zarris, G.; Simeonidou, D.; Kouloumentas, C.; Spyropoulou, M.; Tomkos, I.; Parmigiani, F.; Petropoulos, P.; Richardson, D.J.; Weerasuriya, R.; Ibrahim, S.; Ellis, A.D.; Meuer, C.; Bimberg, D.; Morais, R.; Monteiro, P.; Ben Ezra, S.; Tsadka, S.: 'An all-optical grooming switch with regenerative capabilities,' Proc. 11th Intern. Conf. on Transparent Optical Networks (ICTON'09), June 28 – July 2, 2009, Ponta Delgada, Island of São Miguel, Portugal.  Paper We.A3.4, vol. 3, pp. 1–4 (invited)
  163. Leuthold, J.; Freude, W.; Brosi, J.-M.; Baets, R.; Dumon, P.; Biaggio, I.; Scimeca, M. L.; Diederich, F.; Frank, B.; Koos, C.: 'Silicon organic hybrid technology – A platform for practical nonlinear optics,' Proc. IEEE 97 (2009) 1304–1316 (invited)
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  164. Li, J.; Worms, K.; Vorreau, P.; Hillerkuss, D.; Ludwig, A.; Maestle, R.; Schüle, S.; Hollenbach, U.; Mohr, J.; Freude, W.; Leuthold, J.: 'Optical vector signal analyzer based on differential direct detection,' The 22nd Annual Meeting of the IEEE Photonics Society (formerly: Lasers and Electro-Optics Society, LEOS 2009), Belek-Antalya, Turkey, October 4–8, 2009. Paper TuA4 (Best Paper Award)
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  165. Vorreau, P.; Sygletos, S.; Parmigiani, F.; Hillerkuss, D.; Bonk, R.; Petropoulos, P.; Richardson, D. J.; Zarris, G.; Simeonidou, D.; Klonidis, D.; Tomkos, I.; Weerasuriya, R.; Ibrahim, S.; Ellis, A. D.; Cotter, D.; Morais, R.; Monteiro, P.; Ben Ezra, S.; Tsadka, S.; Freude, W.; Leuthold, J.: 'Optical grooming switch with regenerative functionality for transparent interconnection of networks,' Opt. Express 17 (2009) 15173–15185
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  166. Vallaitis, T.; Bogatscher, S.; Alloatti, L.; Dumon, P.; Baets, R.; Scimeca, M. L.; Biaggio, I.; Diederich, F.; Koos, C.; Freude, W.; Leuthold, J.: 'Optical properties of highly nonlinear silicon-organic hybrid (SOH) waveguide geometries,' Opt. Express 17 (2009) 17357–17368
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  167. Vallaitis, T; Hillerkuss, D.; Li, J.-S.; Bonk, R.; Lindenmann, N.; Dumon, P.; Baets, R.; Scimeca, M. L.; Biaggio, I.; Diederich, F.; Koos, C.; Freude, W.; Leuthold, J.: 'All-optical wavelength conversion using cross-phase modulation at 42.7 Gbit/s in silicon-organic hybrid (SOH) waveguides,' Proc. Intern. Conf. on Photonics in Switching (PS'09), Pisa, Italy, September 15–19, 2009. Postdeadline Paper PDP3
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  168. Scimeca, M. L.; Biaggio, I.; Breiten, B.; Diederich, F.; Vallaitis, T.; Freude, W.; Leuthold, J.: 'Vapor deposition of organic molecules for ultrafast all-optical switching on silicon,' in Optics & Photonics News (OPN) 20 (2009) 39, in Special Issue 'Optics in 2009'
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  169. Wang, J.; Maitra, A.; Freude, W.; Leuthold, J.: 'Regenerative properties of interferometric all-optical DPSK wavelength converters,' Opt. Express 17 (2009) 22639–22658
    The full text of this paper is available: Download

    2010
  170. Leuthold, J.; Bonk, R.; Vorreau, P.; Sygletos, S.; Hillerkuss, D.; Freude, W.; Zarris, G.; Simeonidou, D.; Kouloumentas, C.; Spyropoulou, M.; Tomkos, I.; Parmigiani, F.; Petropoulos, P.; Richardson, D. J.; Weerasuriya, R.; Ibrahim, S.; Ellis, A. D.; Morais, R.; Monteiro, P.; Ben Ezra, S.; Tsadka, S.: 'All-optical grooming for 100 Gbit/s ethernet,' Proc. SPIE 7621 (2010) 762107 
  171. Kapoor, A.; Sharma, E. K.; Freude, W.; Leuthold, J.: 'Investigation of the saturation characteristics of InGaAsP-InP bulk SOA,' Proc. SPIE 7597 (2010) 75971I
  172. Sygletos, S.; Bonk, R.; Vallaitis, T.; Marculescu, A.; Vorreau, P.; Li, J.; Brenot, R.; Lelarge, F.; Duan, G.-H.; Freude, W.; Leuthold, J.: 'Filter assisted wavelength conversion with quantum-dot SOAs,' J. Lightw. Technol. 28 (2010) 882–897
  173. Vallaitis, T.; Bonk, R.; Guetlein, J.; Hillerkuss, D.; Li, J.; Brenot, R.; Lelarge, F.; Duan, G. H.; Freude, W.; Leuthold, J.: 'Quantum dot SOA input power dynamic range improvement for differential-phase encoded signals,' Opt. Express 18 (2010) 6270–6276
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  174. Leuthold, J.; Bonk, R.; Vallaitis, T.; Marculescu, A.; Freude, W.; Meuer, C.; Bimberg, D.; Brenot, R.; Lelarge, F.; Duan, G.-H.: 'Linear and nonlinear semiconductor optical amplifiers,' Proc. Optical Fiber Communication Conference (OFC'10), San Diego (CA), USA, 21.–25.03.2010. Paper OThI3 (invited)
  175. Bonk, R.; Vallaitis, T.; Guetlein, J.; Hillerkuss, D.; Li, J.; Freude, W.; Leuthold, J.: 'Quantum dot SOA dynamic range improvement for phase modulated signals,' Proc. Optical Fiber Communication Conference (OFC'10), San Diego (CA), USA, 21.–25.03.2010. Paper OThK3
  176. Hillerkuss, D.; Marculescu, A.; Li, J.; Teschke, M.; Sigurdsson, G.; Worms, K.; Ben Ezra, S.; Narkiss, N.; Freude, W.; Leuthold, J.: 'Novel optical fast fourier transform scheme enabling real-time OFDM processing at 392 Gbit/s and beyond,' Proc. Optical Fiber Communication Conference (OFC'10), San Diego (CA), USA, 21.–25.03.2010. Paper OWW3
  177. Li, J.; Worms, K.; Hillerkuss, D.; Richter, B.; Maestle, R.; Freude, W.; Leuthold, J.: 'Tunable free space optical delay interferometer for demodulation of differential phase shift keying signals,' Proc. Optical Fiber Communication Conference (OFC'10), San Diego (CA), USA, 21.–25.03.2010. Paper JWA24
  178. Roeger, M.; Hiba, B.; Hoh, M.; Hehmann, J.; Pfeiffer, T.; Huebner, M.; Becker, J.; Leuthold, J.; Freude, W.: 'Optically powered low-energy demarcation device for monitoring FTTx networks,' Proc. Optical Fiber Communication Conference / National Fiber Optic Engineers Conference (OFC/NFOEC'10), San Diego (CA), USA, 21.–25.03.2010. Paper NWC4
  179. Vallaitis, T.; Bonk, R.; Guetlein, J.; Hillerkuss, D.; Li, J.; Freude, W.; Leuthold, J.; Koos, C.; Scimeca, M.  L.; Biaggio, I.; Diederich, F.; Breiten, B.; Dumon, P.; Baets, R.: 'All-optical wavelength conversion of 56 Gbit/s NRZ-DQPSK signals in silicon-organic hybrid strip waveguides,' Proc. Optical Fiber Communication Conference (OFC'10), San Diego (CA), USA, 21.–25.03.2010. Paper OTuN1
  180. Hillerkuss, D.; Schellinger, T.; Schmogrow, R.; Winter, M.; Vallaitis, T.; Bonk, R.; Marculescu, A.; Li, J.; Dreschmann, M.; Meyer, J.; Ben Ezra, S.; Narkiss, N.; Nebendahl, B.; Parmigiani, F.; Petropoulos, P.; Resan, B.; Weingarten, K.; Ellermeyer, T.;  Lutz, J.; Möller, M.; Hübner, M.; Becker, J.; Koos, C.; Freude, W.; Leuthold, J.: 'Single source optical OFDM transmitter and optical FFT receiver demonstrated at line rates of 5.4 and 10.8 Tbit/s,' Proc. Optical Fiber Communication Conference (OFC'10), San Diego (CA), USA, 21.–25.03.2010. Postdeadline Paper PDPC1
  181. Hillerkuss, D.; Winter, M.; Teschke, M.; Marculescu, A.; Li, J.; Sigurdsson, G.; Worms, K.; Ben Ezra, S.; Narkiss, N.; Freude, W.; Leuthold, J.: 'Simple all-optical FFT scheme enabling Tbit/s real-time signal processing,' Opt. Express 18 (2010) 9324–9340
  182. Freude, W.; Vallaitis, T.; Koos, C.; Brosi, J.-M.; Alloatti, L.; Dumon, P.; Baets, R.; Scimeca, M. L.; Biaggio, I.; Breiten, B.; Diederich, F.; Leuthold, J.: 'Ultrafast silicon-organic hybrid (SOH) photonics,' Proc. Conf. on Lasers and Electro-Optics (CLEO/IQEC'10), San Jose (CA), May 16–21, 2010. Paper CThR1 (invited)
  183. Melikyan, A.; Vallaitis, T.; Lindenmann, N.; Schimmel, T.; Freude, W.; Leuthold, J.: 'A surface plasmon polariton absorption modulator,' Proc. Conf. on Lasers and Electro-Optics (CLEO/IQEC'10), San Jose (CA), May 16–21, 2010. Paper JThE77
  184. Freude, W.; Roeger, M.; Hehmann, J.; Pfeiffer, T.; Huebner, M.; Becker, J.; Koos, C.; Leuthold, J.: 'Energy-autarkic monitor for FTTx networks,' Proc. OSA Optics & Photonics Congress, Karlsruhe, Germany, June 21–24, 2010. Paper ATuC2 (invited)
  185. Hillerkuss, D.; Schmogrow, R.; Hübner, M.; Winter, M.; Nebendahl, B.; Becker, J.; Freude, W.; Leuthold, J.: 'Software-defined multi-format transmitter with real-time signal processing for up to 160 Gbit/s,' Proc. OSA Optics & Photonics Congress, Karlsruhe, Germany, June 21–24, 2010. Paper SPTuC4
  186. Vallaitis, T.; Bonk, R.; Guetlein, J.; Meuer, C.; Hillerkuss, D.; Freude, W.; Bimberg, D.; Leuthold, J.: 'Optimizing SOA for large input power dynamic range with respect to applications in extended GPON,' Proc. OSA Optics & Photonics Congress, Karlsruhe, Germany, June 21–24, 2010. Paper AThC4
  187. Li, J.; Worms, K.; Marculescu, A.; Hillerkuss, D.; Ben-Ezra, S.; Freude, W.; Leuthold, J.: 'Optical vector signal analyzer based on differential detection with inphase and quadrature phase control,' Proc. OSA Optics & Photonics Congress, Karlsruhe, Germany, June 21–24, 2010. Paper SPTuB3
  188. Spyropoulou, M.; Bonk, R.; Hillerkuss, D.; Pleros, N.; Vallaitis, T.; Freude, W.; Tomkos, I.; Leuthold, J.: 'Experimental investigation of multi-wavelength clock recovery based on a quantum-dot SOA at 40 Gb/s,' Proc. OSA Optics & Photonics Congress, Karlsruhe, Germany, June 21–24, 2010. Paper SPTuB4
  189. Sygletos, S.; Bonk, R.; Vallaitis, T.; Marculescu, A.; Vorreau, P.; Li, J.; Brenot, R.; Lelarge, F.; Duan, G.-H.; Freude, W.; Leuthold, J.: 'Filter assisted wavelength conversion with quantum-dot SOAs,' J. Lightw. Technol. 28 (2010) 882–897
  190. Freude, W.; Bonk, R.; Vallaitis, T.; Marculescu, A.; Kapoor, A.; Sharma, E.  K.; Meuer, C.; Bimberg, D.; Brenot, R.; Lelarge, F.; Duan, G.-H.; Leuthold, J.: 'Linear and nonlinear semiconductor optical amplifiers,' Proc. 12th Intern. Conf. on Transparent Optical Networks (ICTON'10), München, Germany, June 27–July 1, 2010. Paper We.D4.1 (invited)
  191. Freude, W.; Leuthold, J.; Alloatti, L.; Vallaitis, T.; Korn, D.; Palmer, R.; Koos, C.; Brosi, J.-M.; Dumon, P.; Baets, R.; Scimeca, M. L.; Biaggio, I.; Breiten, B.; Diederich, F.; Barklund, A.; Dinu, R.; Wieland, J.: '100 Gbit/s electro-optic modulator and 56 Gbit/s wavelength converter for DQPSK data in silicon-organic hybrid (SOH) technology,' Proc. IEEE Photonics Society (formerly: Lasers and Electro-Optics Society) Summer Topicals 2010 "Novel Waveguiding, Structures and Phenomena", Playa del Carmen, Riviera Maya, Mexico, July 19–21, 2010. Paper WB2.1 (invited)
  192. Leuthold, J.; Koos, C.; Freude, W.: 'Nonlinear silicon photonics,' Nature Photon. 4 (2010) 535–544 (invited)
  193. Koos, C.; Leuthold, J.; Freude W.: 'Optical communications: Modulation at femtojoule scale,' Nature Photon. 4 (2010) 583–584 (invited)
  194. Schmogrow, R.; Hillerkuss, D.; Dreschmann, M.; Huebner, M.; Winter, M.; Meyer, J.; Nebendahl, B.; Koos, C.; Becker, J.; Freude, W.; Leuthold, J.: 'Real-time software-defined multiformat transmitter generating 64QAM at 28 GBd,' IEEE Photon. Technol. Lett. 22 (2010) 1601-1603

    2011
  195. Bonk, R.; Vorreau, P.; Hillerkuss, D.; Freude, W.; Zarris, G.; Simeonidou, D.; Parmigiani, F.; Petropoulos, P.; Weerasuriya, R.; Ibrahim, S.; Ellis, A. D.; Klonidis, D.; Tomkos, I.; Leuthold, J.: 'An all-optical grooming switch for interconnecting access and metro ring networks,' J. Opt. Commun. Netw. 3 (2011) pp. 206–214 (invited)
  196. Melikyan, A.; Lindenmann, N.; Walheim, S.; Leufke, P. M.; Ulrich, S.; Ye, J.; Vincze, P.; Hahn, H.; Schimmel, Th.; Koos, C.; Freude, W.; Leuthold, J.: 'Surface plasmon polariton absorption modulator,' Opt. Express 19 (2011) 8855–8869
  197. Hillerkuss, D.; Schmogrow, R.; Schellinger, T.; Jordan, M.; Winter, M.; Huber, G.; Vallaitis, T.; Bonk, R.; Kleinow, P.; Frey, F.;  Roeger, M.; Koenig, S.; Ludwig, A.; Marculescu, A.; Li, J.; Hoh, M.; Dreschmann, M.; Meyer, J.; Ben Ezra, S.; Narkiss, N.; Nebendahl, B.; Parmigiani, F.; Petropoulos, P.; Resan, B.; Oehler, A.; Weingarten, K.; Ellermeyer, T.;  Lutz, J.; Moeller, M.; Huebner, M.; Becker, J.; Koos, C.; Freude, W.; Leuthold, J.: '26 Tbit s–1 line-rate super-channel transmission utilizing all-optical fast Fourier transform processing,' Nature Photon. 5 (2011) 364–371. Published online: 22 May 2011. Commented in News & Views by Leif Katsuo Oxenløwe: 'Single-laser superchannel'
  198. Alasaarela, T.; Korn, D.; Alloatti, L.; Säynätjoki, A.; Tervonen, A.; Palmer, R.; Leuthold, J.; Freude, W.; Honkanen, S.: 'Reduced propagation loss in silicon strip and slot waveguides coated by atomic layer deposition,' Opt. Express 19 (2011) 11529–11538
  199. Li, J.; Worms, K.; Maestle, R.; Hillerkuss, D.; Freude, W.; Leuthold, J.: 'Free-space optical delay interferometer with tunable delay and phase,' Opt. Express 19 (2011) 11654–11666
  200. Alloatti, L.; Korn, D.; Palmer, R.; Hillerkuss, D.; Li, J.; Barklund, A.; Dinu, R.; Wieland, J.; Fournier, M.; Fedeli, J.; Yu, H.; Bogaerts, W.; Dumon, P.; Baets, R.; Koos, C.; Freude, W.; Leuthold, J.: '42.7 Gbit/s electro-optic modulator in silicon technology,' Opt. Express 19 (2011) 11841–11851
  201. Schmogrow, R.; Winter, M.; Hillerkuss, D.; Nebendahl, B.; Ben-Ezra, S.; Meyer, J.; Dreschmann, M.; Huebner, M.; Becker, J.; Koos, C.; Freude, W.; Leuthold, J.: 'Real-time OFDM transmitter beyond 100 Gbit/s,' Opt. Express 19 (2011) 12740–12749
  202. Baets, R.; Freude, W.; Melloni, A.; Popovic, M.; Vanwolleghem, M.: 'Comment on “Nonreciprocal light propagation in a silicon photonic circuit",' arXiv:1110.2647v1 October (2011). See also [207].
  203. Lindenmann, N.; Balthasar, G.; Hillerkuss, D.; Schmogrow, R.; Jordan, M.; Leuthold, J.; Freude, W.; Koos, C.: 'Photonic wire bonds for Terabit/s chip-to-chip interconnects,' arXiv:1111.0651v1 November (2011). See also [216].
  204. Bonk, R.; Vallaitis, T.; Guetlein, J.; Meuer, C.; Schmeckebier, H.; Bimberg, D.; Koos, C.; Freude, W.; Leuthold, J.: 'The input power dynamic range of a semiconductor optical amplifier and its relevance for access network applications,' IEEE Photonics J. 3 (2011) 1039–1053

    2012
  205. Schmogrow, R.; Nebendahl, B.; Winter, M.; Josten, A.; Hillerkuss, D.; Koenig, S.; Meyer, J.; Dreschmann, M.; Huebner, M.; Koos, C.; Becker, J.; Freude, W.; Leuthold, J.: 'Error vector magnitude as a performance measure for advanced modulation formats,' IEEE Photon. Technol. Lett. 24 (2012) 61–63. Explanation: OSNR means the signal-to-noise power ratio measured in the optical signal bandwidth, not in a reference bandwidth of 1 nm (12.5 GHz at lambda = 1.55 µm). Erratum: In Eq. (4), replace sqrt(2) by 1. Corrections in: IEEE Photon. Technol. Lett. 24 (2012) 2198
  206. Schmogrow, R.; Winter, M.; Meyer, M.; Hillerkuss, D.; Wolf, S.; Baeuerle, B.; Ludwig, A.; Nebendahl, B.; Ben-Ezra, S.; Meyer, J.; Dreschmann, M.; Huebner, M.; Becker, J.; Koos, C.; Freude, W.; Leuthold, J.: 'Real-time Nyquist pulse generation beyond 100 Gbit/s and its relation to OFDM,' Opt. Express 20 (2012) 317–337
  207. Fan, S.; Baets, R.; Petrov, A.; Yu, Z.; Joannopoulos, J. D.; Freude, W.; Melloni, A.; Popovic, M.; Vanwolleghem, M.; Jalas, D.; Eich, M.; Krause, M.; Renner, H.; Brinkmeyer, E.; Doerr, C. R.: 'Comment on “Nonreciprocal light propagation in a silicon photonic circuit”,' Science 335 (2012) 38 ff. Response to comment: Science 335 (2012) 38 ff. See also [202].
  208. Säynätjoki, A.; Karvonen, L.; Alasaarela, T.; Korn, D.; Alloatti, L.; Tervonen, A.; Palmer, R.; Koos, C.; Leuthold, J.; Freude, W.; Honkanen, S. K.: 'Loss reduction of silicon slot waveguides with ALD-grown thin films,' Proc. SPIE 8266 (2012) 82660D
  209. Freude, W.; Schmogrow, R.; Hillerkuss, D.; Meyer, J.; Dreschmann, M.; Nebendahl, B.; Huebner, M.; Becker, J.; Koosa, C.; Leuthold, J.: 'Reconfigurable optical transmitters and receivers,' Proc. SPIE 8284 (2012) 82840A (invited)
  210. Schmogrow, R.; Hillerkuss, D.; Wolf, S.; Bäuerle, B.; Winter, M.; Kleinow, P.; Nebendahl, B.; Dippon, T.; Schindler, P. C.; Koos, C.; Freude, W.; Leuthold, W.: '512QAM Nyquist sinc-pulse transmission at 54 Gbit/s in an optical bandwidth of 3 GHz,' Opt. Express 20 (2012) 6439–6447
  211. Parmigiani, F.; Provost, L.; Petropoulos, P.; Richardson, D. J.; Freude, W.; Leuthold, J.; Ellis, A. D.; Tomkos, I.: 'Progress in multichannel all-optical regeneration based on fiber technology,' IEEE J. Sel. Topics Quantum Electron. 18 (2012) 689–700
  212. Hillerkuss, D.; Schmogrow, R.; Meyer, M.; Wolf, S.; Jordan, M.; Kleinow, P.; Lindenmann, N.; Schindler, P. C.; Melikyan, A.; Yang, X.; Ben-Ezra, S.; Nebendahl, B.; Dreschmann, M.; Meyer, J.; Parmigiani, F.; Petropoulos, P.; Resan, B.; Oehler, A.; Weingarten, K.; Altenhain, L.; Ellermeyer, T.; Moeller, M.; Huebner, M.; Becker, J.; Koos, C.; Freude, W.; Leuthold, J.: 'Single-laser 32.5 Tbit/s Nyquist WDM transmission,' arXiv:1203.2516v1 March (2012). See also [220]. 
  213. Li, H.; Hiremath, K. R.; Rieder, A.; Freude, W.: 'Adaptive wavelet collocation method for simulation of time dependent Maxwell's equations,' arXiv:1204.1187v1 April (2012)
  214. Bonk, R.; Huber, G.; Vallaitis, T.; Koenig, S.; Schmogrow, R.; Hillerkuss, D.; Brenot, R.; Lelarge, F.; Duan, G.-H.; Sygletos, S.; Koos, C.; Freude, W.; Leuthold, J.: 'Linear semiconductor optical amplifiers for amplification of advanced modulation formats,' Opt. Express 20 (2012) 9657–9672
  215. Pfeifle, J.; Alloatti, L.; Freude, W.; Leuthold, J.; Koos, C.: 'Silicon-organic hybrid phase shifter based on a slot waveguide with a liquid-crystal cladding,' Opt. Express 20 (2012) 15359–15376
  216. Lindenmann, N.; Balthasar, G.; Hillerkuss, D.; Schmogrow, R.; Jordan, M.; Leuthold, J.; Freude, W.; Koos, C.: 'Photonic wire bonding: a novel concept for chip-scale interconnects,' Optics Express 20 (2012) 17667–17677
  217. Alloatti, L.; Korn, D.; Weimann, C.; Koos, C.; Freude, W.; Leuthold, J.: 'Second-order nonlinear silicon-organic hybrid waveguides,' Opt. Express 20 (2012) 20506–20515
  218. Li, J.; Schmogrow, R.; Hillerkuss, D.; Schindler, P. C.; Nazarthy, M.; Schmidt-Langhorst, C.; Ben Ezra, S.; Tselniker, I.; Koos, C.; Freude, W.; Leuthold, J.: 'A self-coherent receiver for detection of PolMUX coherent signals,' Opt. Express 20 (2012) 21413–21433
  219. Bouziane, R.; Schmogrow, R.; Hillerkuss, D.; Milder, P. A.; Koos, C.; Freude, W.; Leuthold, J.; Bayvel, P.; Killey, R. I.: 'Generation and transmission of 85.4 Gb/s real-time 16QAM coherent optical OFDM signals over 400 km SSMF with preamble-less reception,' Opt. Express 20 (2012) 21612–21617
  220. Hillerkuss, D.; Schmogrow, R.; Meyer, M.; Wolf, S.; Jordan, M.; Kleinow, P.; Lindenmann, N.; Schindler, P. C.; Melikyan, A.; Yang, X.; Ben-Ezra, S.; Nebendahl, B.; Dreschmann, M.; Meyer, J.; Parmigiani, F.; Petropoulos, P.; Resan, B.; Oehler, A.; Weingarten, K.; Altenhain, L.; Ellermeyer, T.; Moeller, M.; Huebner, M.; Becker, J.; Koos, C.; Freude, W.; Leuthold, J.: 'Single-laser 32.5 Tbit/s Nyquist WDM transmission,' J. Opt. Commun. Netw. 4 (2012) 715–723. See also [212].
  221. O'Duill, S.; Marazzi, L.; Parolari, P.; Brenot, R.; Koos, C.; Freude, W.; Leuthold, J.: 'Efficient modulation cancellation using reflective SOAs,' Opt. Express 20 (2012) B587–B594
  222. Schmogrow, R.; Bouziane, R.; Meyer, M. Milder P. A.; Schindler P. C.; Killey, P.; Bayvel, P.; Koos, C.; Freude, W.; Leuthold, J.: 'Real-time OFDM or Nyquist pulse generation – which performs better with limited resources?,' Opt. Express 20 (2012) B543–B551
  223. Bonk, R.; Vallaitis, T.; Freude, W.; Leuthold, J.; Penty, R. V., Borghesani, A.; Lealman, I. F.: 'Linear Semiconductor Optical Amplifiers'. In: Venghaus, H.; Grote, N. (Eds.): 'Fibre Optic Communication — Key Devices'. Springer Series in Optical Sciences Vol. 161, Berlin 2012, Chapter 12, pp. 511–571

    2013
  224. Petrov, A.; Jalas, D.; Eich, M.; Freude, W.; Fan, S.; Yu, Z.; Baets, R.; Popovic, M.; Melloni, A.; Joannopoulos, J.  D.; Vanwolleghem, M.; Doerr, C.  R.; Renner, H.: 'Comment on “Linear and passive silicon optical isolator”,' arXiv:1301.7243v1 January (2013). See also [226].
  225. Palmer, R.; Alloatti, L.; Korn, D.; Heni, W.; Schindler, P. C.; Bolten, J.; Karl, M.; Waldow, M.; Wahlbrink, T.; Freude, W.; Koos, C.; Leuthold, J.: 'Low-loss silicon strip-to-slot mode converters,'  IEEE Photonics J. 5 (2013) 2200409
  226. Petrov, A.; Jalas, D.; Eich, M.; Freude, W.; Fan, S.; Yu, Z.; Baets, R.; Popovic, M.; Melloni, A.; Joannopoulos, J.  D.; Vanwolleghem, M.; Doerr, C.  R.; Renner, H.: 'Comment on “Linear and passive silicon optical isolator” (Article 674)' Scientific Reports 2, February (2013). See also [224].
  227. Palmer, R.; Alloatti, L.; Korn, D.; Schindler, P. C.; Schmogrow, R.; Heni, W.; Koenig, S.; Bolten, J.; Wahlbrink, T.; Waldow, M.; Yu, H.; Bogaerts, W.; Verheyen, P.; Lepage, G.; Pantouvaki, M.; Van Campenhout, J.; Absil, P.; Dinu, R.; Freude, W.; Koos, C.; Leuthold, J.: 'Silicon-organic hybrid MZI modulator generating OOK, BPSK and 8-ASK signals for up to 84 Gbit/s,'  IEEE Photonics J. 5 (2013) 6600907
  228. Mishra, A. K.; Schmogrow, R.; Tomkos, I.; Hillerkuss, D.; Koos, C.; Freude, W.; Leuthold, J.: 'Flexible RF-based comb generator,' IEEE Photon. Technol. Lett. 25 (2013) 701–704
  229. Leuthold, J.; Hoessbacher, C.; Muehlbrandt, S.; Melikyan, A.; Kohl, M.; Koos, C.; Freude, W.; Dolores-Calzadilla, V.; Smit, M.; Suarez, I.; Martínez-Pastor, J.; Fitrakis, E. P.; Tomkos, I.: 'Plasmonic communications: Light on a wire,' Optics and Photonics News 24 (2013) 28–35
  230. Korn, D.; Palmer, R.; Yu, H.; Schindler, P. C.; Alloatti,L.; Baier, M.; Schmogrow, R.; Bogaerts, W.; Selvaraja, S. K.; Lepage, G.; Pantouvaki, M.; Wouters, J. M. D.; Verheyen, P.; Van Campenhout, J.; Chen, B.; Baets, R.; Absil, P.; Dinu, R.; Koos, C.; Freude, W.; Leuthold, J.: 'Silicon-organic hybrid (SOH) IQ modulator using the linear electro-optic effect for transmitting 16QAM at 112 Gbit/s,' Opt. Express 21 (2013) 13219–13227
  231. Li, J.; Billah, M. R.; Schindler, P. C.; Lauermann, M.; Schuele, S.; Hengsbach, S.; Hollenbach, U.; Mohr, J.; Koos, C.; Freude, W.; Leuthold, J.: 'Four-in-one interferometer for coherent and self-coherent detection,' Opt. Express 21 (2013) 13293–13304
  232. Palmer, R.; Alloatti, L.; Korn, D.; Schindler, P.; Baier, M.; Bolten, J.; Wahlbrink, T.; Waldow, M.; Dinu, R.; Freude, W.; Koos, C.; Leuthold, J.: 'Low power Mach-Zehnder modulator in silicon-organic hybrid technology,' IEEE Photon. Technol. Lett. 25 (2013) 1226–1229 
  233. Schmogrow, R.; Schindler, P. C.; Koos, C.; Freude, W.; Leuthold, J.: 'Blind polarization demultiplexing with low computational complexity,' IEEE Photon. Technol. Lett. 25 (2013) 1230–1233
  234. Pfeifle, J.; Lauermann, M.; Wegner, D.; Brasch, V.; Herr, T.; Hartinger, K.; Li, J.; Hillerkuss, D.; Schmogrow, R.; Holzwarth, R.; Freude, W.; Leuthold, J.; Kippenberg, T.  J.; Koos, C.: 'Coherent data transmission with microresonator Kerr frequency combs,' arXiv:1307.1037v2 July (2013). See also [252] 
  235. Leuthold, J.; Freude, W.: 'Optical OFDM and Nyquist Multiplexing'. In: Kaminow, I. P.; Li, Tingye; Willner, A. E. (Eds.): 'Optical Fiber Telecommunications VI B. Systems and Networks', 6th Ed. Elsevier (Imprint: Academic Press), Amsterdam 2013, Chapter 9, pp. 381–432
  236. Alloatti, L.; Lauermann, M.; Sürgers, C.; Koos, C.; Freude, W.; Leuthold, J.: 'Optical absorption in silicon layers in the presence of charge inversion/accumulation or ion implantation,' Appl. Phys. Lett. 103 (2013) 051104-1–5
  237. Jalas, D.; Petrov, A.; Eich, M.; Freude, W.; Fan, S.; Yu, Z.; Baets, R.; Popovic, M.; Melloni, A.; Joannopoulos, J. D.; Vanwolleghem, M.; Doerr, C. R.; Renner, H.: 'What is — and what is not — an optical isolator,' Nature Photon. 7 (2013) 579–582. Published online: 30 July 2013
  238. Schmogrow, R.; Ben-Ezra, S.; Schindler, P. C.; Nebendahl, B.; Koos, C.; Freude, W.; Leuthold, J.: 'Pulse-shaping with digital, electrical, and optical filters—A comparison,' J. Lightw. Technol. 31 (2013) 2570–2577
  239. Schindler, P. C.; Schmogrow, R.; Dreschmann, M.; Meyer, J.; Tomkos, I.; Prat, J.; Krimmel, H.-G.; Pfeiffer, T.; Kourtessis, P.; Ludwig, A.; Karnick, D.; Hillerkuss, D.; Becker, J.; Koos, C.; Freude, W.; Leuthold, J.: 'Colorless FDMA-PON with flexible bandwidth allocation and colorless, low-speed ONUs,' J. Opt. Commun. Netw. 5 (2013) A204–A212 (invited)
  240. Leuthold, J.; Koos, C.; Freude, W.; Alloatti, L.; Palmer, R.; Korn, D.; Pfeifle, J.; Lauermann, M.; Dinu, R.; Jazbinsek, M.; Waldow, M.; Wahlbrink, T.; Bolten, J.; Fournier, M.; Yu, H.; Wehrli, S.; Fedeli, J. M.; Gunter, P.; Bogaerts, W.: 'Silicon-organic hybrid electro-optical devices', IEEE J. Sel. Topics Quantum Electron. 19 (2013) 3401413 (invited)
  241. Koenig, S.; Lopez-Diaz, D.; Antes, J.; Boes, F.; Henneberger, R.; Leuther, A.; Tessmann, A.; Schmogrow, R.; Hillerkuss, D.; Palmer, R.; Zwick, T.; Koos, C.; Freude, W.; Ambacher, O.; Leuthold, J.; Kallfass, I.: 'Wireless sub-THz communication system with high data rate,' Nature Photon. 7 (2013) 977–981. Published online: 13 Oct 2013. Supplementary information available 
  242. Hillerkuss, D.; Schellinger, T.; Jordan, M.; Weimann, C.; Parmigiani, F.; Besan, B.; Weingarten, K.; Ben-Ezra, S.; Nebendahl, B.; Koos, C.; Freude, W.; Leuthold, J.: 'High-quality optical frequency comb by spectral slicing of SPM broadened pulses,'  IEEE Photonics J. 5 (2013) 7201011
  243. Deniel, Q.; Saliou, F.; Chanclou, P.; Marazzi, L.; Parolari, P.; Brunero, M.; Gatto, A.; Martinelli, M.; Gavioli, G.; Iachelini, A,; Cimmino, A.; Brenot, R.; Barbet, S.; Lelarge, F.; ODuill, S.; Gebrewald, S.; Koos, C.; Freude, W.; Leuthold, J.: 'Last-Mile Technologies: New WDM Access Proposals, Devices and Experiments'. In: Pisco, M. (Ed.): 'Lasers and Electro-Optics Research and Technology', Nova Science Publishers, 2013, Chapter 7. ISBN-10: 1628084251. ISBN-13: 978-1628084252

    2014
  244. Koenig, S.; Antes, J.; Lopez-Diaz, D.; Schmogrow, R.; Zwick, T.; Koos, C.; Freude, W.; Leuthold, J.; Kallfass, I.: '20 Gbit/s wireless bridge at 220 GHz connecting two fiber-optic links,' J. Opt. Commun. Netw. 6 (2014) 54–61
  245. Schmogrow, R.; Meyer,M.; Schindler, P. C.; Nebendahl, B.; Dreschmann, M.; Meyer, J.; Josten, A.; Hillerkuss, D.; Ben-Ezra, S.; Becker, J.; Koos, C.; Freude, W.; Leuthold, J.: 'Real-time Nyquist signaling with dynamic precision and flexible non-integer oversampling,' Opt. Express 22 (2014) 193–209
  246. Schmuck, H.; Bonk, R.; Poehlmann, W.; Haslach, C.; Kuebart, W.; Karnick, D.; Meyer, J.; Fritzsche, D.; Weis, E.; Becker, J.; Freude, W.; Pfeiffer, T.: 'Demonstration of an SOA-assisted open metroaccess infrastructure for heterogeneous services,' Opt. Express 22 (2014) 737–748
  247. Weimann, C.; Schindler, P.; Palmer, R.; Wolf, S.; Bekele, D.; Korn, D.; Pfeifle, J.; Koeber, S.; Schmogrow, R.; Alloatti, L.; Elder, D.; Yu, H.; Bogaerts, W.; Dalton, L.; Freude, W.; Leuthold, J.; Koos, C.: 'Silicon-organic hybrid (SOH) frequency comb sources for terabit/s data transmission,' Opt. Express 22 (2014) 3629-3637
  248. Melikyan, A.; Alloatti, L.; Muslija, A.; Hillerkuss, D.; Schindler, P. C.; Li, J.; Palmer, R.; Korn, D.; Muehlbrandt, S.; Van Thourhout, D.; Chen, B.; Dinu, R.; Sommer, M.; Koos, C.; Kohl, M.; Freude, W.; Leuthold, J.: 'High-speed plasmonic phase modulators,' Nature Photon. 8 (2014) 229–233. Published online: 16 Feb 2014. Supplementary information available. Commented in News & Views by Min-Hsiung Shih: 'Small and fast plasmonic modulator' 
  249. Schindler, P. C.; Korn, D.; Stamatiadis, C.; O’Keefe, M. F.; Stampoulidis, L.; Schmogrow, R.; Zakynthinos, P.; Palmer, R.; Cameron, N.; Zhou, Y.; Walker, R. G.; Kehayas, E.; Tomkos, I.; Zimmermann, L.; Petermann, K.; Freude, W.; Koos, C.; Leuthold, J.: 'Monolithic GaAs electro-optic IQ modulator demonstrated at 150 Gbit/s with 64QAM,' J. Lightw. Technol. 31 (2014) 760–765 (invited)
  250. Agmon, A.; Nazarathy, M.; Marom, D. M.; Ben-Ezra, S.; Tolmachev, A.; Killey, R.; Bayvel, P.; Meder, L.; Hübner, M.; Meredith, W.; Vickers, G.; Schindler, P. C.; Schmogrow, R.; Hillerkuss, D.; Freude, W.; Koos, C.; Leuthold, J.: 'OFDM/WDM PON with laserless, colorless 1 Gb/s ONUs based on Si-PIC and slow IC,' J. Opt. Commun. Netw. 6 (2014) 225–237
  251. Schmogrow, R.; Nebendahl, B.; Josten, A.; Schindler, P. C.; Koos, C.; Freude, W.; Leuthold, J.: 'Timing, carrier frequency and phase recovery for OFDM and Nyquist signals using a mean modulus algorithm,' Opt. Express 22 (2014) 9344–9359
  252. Pfeifle, J.; Brasch, V.; Lauermann, M.; Yu, Y.; Wegner, D.; Herr, T.; Hartinger, K.; Schindler, P.; Li, J.; Hillerkuss, D.; Schmogrow, R; Weimann, C.; Holzwarth, R.; Freude, W.; Leuthold, J.; Kippenberg T. J.; Koos, C.: 'Coherent terabit communications with microresonator Kerr frequency combs,' Nature Photon., 8 (2014) 375–380. Published online: 13 April 2014. See also [234] 
  253. Schindler, P. C.; Schmogrow, R.; Wolf, S.; Baeuerle, B.; Nebendahl, B.; Koos, C.; Freude, W.; Leuthold, J.: 'Full flex-grid asynchronous multiplexing demonstrated with Nyquist pulse-shaping,' Opt. Express 22 (2014) 10923–10937
  254. Korn, D.; Jazbinsek, M.; Palmer, R.; Baier, M.; Alloatti, L.; Yu, H.; Bogaerts, W.; Lepage, G.; Verheyen, P.; Absil, P.; Guenter, P.; Koos, C.; Freude, W.; Leuthold, J.: 'Electro-optic organic crystal silicon high-speed modulator,'  IEEE Photonics J. 6 (2014) 2700109
  255. Alloatti, L.; Palmer, R.; Diebold, S.; Pahl, K. P.; Chen, B.; Dinu, R.; Fournier, M.; Fedeli, J.-M.; Zwick, T.; Freude, W.; Koos, C.; Leuthold, J.: '100 GHz silicon–organic hybrid modulator,' Light: Science & Applications 3 (2014) e173. Published online: 23 May 2014.
  256. Melikyan, A.; Kohl, M.; Sommer, M.; Koos, C.; Freude, W.; Leuthold, J.: 'Photonic-to-plasmonic mode converter,' Opt. Lett. 39 (2014) 3488–3491
  257. Koenig, S.; Bonk, R.; Schmuck, H.; Poehlmann, W.; Pfeiffer, Th.; Koos, C.; Freude, W.; Leuthold, J.: 'Amplification of advanced modulation formats with a semiconductor optical amplifier cascade,' Opt. Express 22 (2014) 17854–17871
  258. Palmer, R.; Koeber, S.; Elder, D. L.; Woessner, M.; Heni, W.; Korn, D.; Lauermann, D.; Bogaerts, W.; Dalton, L. R.; Freude, W.; Leuthold, J.; Koos, C.: 'High-speed, low drive-voltage silicon-organic hybrid modulator based on a binary-chromophore electro-optic material,' J. Lightw. Technol. 32 (2014) 2726–2734 (invited)
  259. Roeger, M.; Hiba, B.; Hehmann, J.; Straub, M.; Schmuck, H.; Hedrich, M.; Pfeiffer, T.; Koos, C.; Leuthold, J.; Freude, W.: 'In-service monitoring of PON access networks with powerline independent devices,' J. Opt. Commun. Netw. 6 (2014) 1018–1027
  260. Weimann, C.; Hoeller, F.; Schleitzer, Y.; Diez, C A; Spruck, B; Freude, W.; Boeck, Y; Koos, C.: 'Measurement of length and position with frequency combs,' J. Phys.: Conf. Ser. (JPCS) 605 (2015) 012030
  261. Lauermann, M.; Palmer, R.; Koeber, S.; Schindler, P. C.; Korn, D.; Wahlbrink, T.; Bolten, J.; Waldow, M.; Elder, D. L.; Dalton, L. R.; Leuthold, J.; Freude, W.; Koos, C.: 'Low-power silicon-organic hybrid (SOH) modulators for advanced modulation formats,' Opt. Express 22 (2014) 29927–29936

    2015
  262. Lindenmann, N.; Dottermusch, S.; Goedecke, M. L.; Hoose, T.; Billah, M. R.; Onanuga, T.; Hofmann, A.; Freude, W.; Koos, C.: 'Connecting silicon photonic circuits to multi-core fibers by photonic wire bonding,' J. Lightw. Technol. 33 (2015) 755–760 (invited)
  263. Koeber, S.; Palmer, R.; Lauermann, M.; Heni, W.; Elder, D.  L.; Korn, D.; Woessner, M.; Alloatti, L.; Koenig, S.; Schindler, P. C.; Yu, H.; Bogaerts, W.; Dalton, L. R.; Freude, W.; Leuthold, J.; Koos, C.: 'Femtojoule electro-optic modulation using a silicon-organic hybrid device,' Light: Science & Applications 4 (2015) e255. Published online: 18 Dec. 2014.
  264. Pfeifle, J.; Vujicic, V.; Watts, R. T.; Schindler, P.  C.; Weimann, C.; Zhou, R.; Freude, W.; Barry, L. P.; Koos, C.: 'Flexible terabit/s Nyquist-WDM super-channels using a gain-switched comb source,' Opt. Express 23 (2015) 724–738
  265. Lauermann, M.; Wolf, S.; Schindler, P. C.; Palmer, R.; Koeber, S.; Korn, D.; Alloatt, L.; Wahlbrink, T.; Bolten, J.; Waldow, M.; Koenigsmann, M.; Kohler, M.; Malsam, D.; Elder, D.L.; Johnston, P.V.; Phillips-Sylvain, N.; Sullivan, P.A.; Dalton, L.R.; Leuthold, J.; Freude, W.; Koos, C.: '40 GBd 16QAM signaling at 160 Gbit/s in a silicon-organic hybrid (SOH) modulator,' J. Lightw. Technol. 33 (2015) 1210–1216 (invited)
  266. Wolf, S.; Lauermann, M.; Schindler, P.; Ronniger, G.; Geistert, K.; Palmer, R.; Köber, S.; Bogaerts, W.; Leuthold, J.; Freude, W.; Koos, C.: 'DAC-less amplifier-less generation and transmission of QAM signals using sub-Volt silicon-organic hybrid modulators,' J. Lightw. Technol. 33 (2015) 1425–1432 (invited)
  267. Pfeifle, J.; Coillet, A.; Henriet, R.; Saleh, K.; Schindler, P.; Weimann, C.; Freude, W.; Balakireva, I. V.; Larger, L.; Koos, C.; Chembo, Y. K.: 'Optimally coherent Kerr combs generated with crystalline whispering gallery mode resonators for ultrahigh capacity fiber communications,' Phys. Rev. Lett. 114 (2015) 093902. Published online: 2 March 2015
  268. Schindler, P. C.; Agmon, A.; Wolf, S.; Bonk, R.; Meder, L.; Meltsin, M.; Ludwig, A.; Schmogrow, R.; Dreschmann, M.; Meyer, J.; Becker, J.; Nazarathy, M.; Ben-Ezra, S.; Pfeiffer, Th.; Freude, W.; Leuthold, J.; Koos, C.: 'Ultra-dense, single-wavelength DFT-spread OFDMA PON with laserless 1.2 Gb/s ONU ready for silicon photonics integration,' J. Lightw. Technol. 33 (2015) 1650–1659 (invited)
  269. Melikyan, A.; Koehnle, K.; Lauermann, M.; Palmer, R.; Koeber, S.; Muehlbrandt, S.; Schindler, P. C.; Elder, D. L.; Wolf, S.; Heni, W.; Haffner, C.; Fedoryshyn, Y.; Hillerkuss, D.; Sommer, M.; Dalton, L. R.; Van Thourhout, D.; Freude, W.; Kohl, M.; Leuthold, J.; Koos, C.: 'Plasmonic-organic hybrid (POH) modulators for OOK and BPSK signaling at 40 Gbit/s,' Opt. Express 23 (2015) 9938–9946
  270. Weimann, C.; Hoeller, F.; Schleitzer, Y.; Diez, C A; Spruck, B; Freude, W.; Boeck, Y; Koos, C.: 'Measurement of length and position with frequency combs,' J. Phys.: Conf. Ser. 605, 012030 (2015)
  271. Weimann, C.; Fratz, M.; Wölfelschneider, H.; Freude, W.; Höfler, H.; Koos, C.: 'Synthetic-wavelength interferometry improved with frequency calibration and unambiguity range extension,' Appl. Opt. 54 (2015) 6334–6343
  272. Ludwig, A.; Schulz, M.-L.; Schindler, P.; Wolf, S.; Koos, C.; Freude, W.; Leuthold, J.: 'Stacked modulation formats enabling highest sensitivity optical free-space links,' Opt. Express 23 (2015) 21942–21957
  273. Alloatti, L.; Kieninger, C.; Froelich, A.; Lauermann, M.; Frenzel, T.; Köhnle, K.; Freude, W.; Leuthold, J.; Wegener, M.; Koos, C.: 'Second-order nonlinear optical metamaterials: ABC-type nanolaminates,' Appl. Phys. Lett. 107 (2015) 121903-1–4

    2016
  274. Koos, C.; Leuthold, J.; Freude, W.; Kohl, M.; Dalton, L.R.; Bogaerts, W.; Giesecke, A.L.; Lauermann, M.; Melikyan, A.; Koeber, S.; Wolf, S.; Weimann, C.; Muehlbrandt, S.; Koehnle, K.; Pfeifle, J.; Hartmann, W.; Kutuvantavida, Y.; Ummethala, S.; Palmer, R.; Korn, D.; Alloatti, L.; Schindler, P. C.; Elder, D. L.; Wahlbrink, T.; Bolten, J.: 'Silicon-organic hybrid (SOH) and plasmonic-organic hybrid (POH) integration,' J. Lightw. Technol. 34 (2016) 1-13 (invited)
  275. Schneider, S.; Lauermann, M.; Dietrich, P.-I.; Weimann, C.; Freude, W.; Koos, C.: 'Optical coherence tomography system massproducible on a silicon photonic chip,' Opt. Express 24 (2016) 1573–1586
  276. Korn, D.; Lauermann, M.; Koeber, S.; Appel, P.; Alloatti, L.; Palmer, R.; Dumon, P.; Freude, W.; Leuthold, J.; Koos, C.: 'Lasing in silicon-organic hybrid waveguides,' Nat.  Commun. 7 (2016) 10864
  277. Lauermann, M.; Wolf, S.; Hartmann, W.; Palmer, R.; Kutuvantavida, Y.; Zwickel, H.; Bielik, A.; Altenhain, L.; Lutz, J.; Schmid, R.; Wahlbrink, T.; Bolten, J.; Giesecke, A. L.; Freude, W.; Koos, C.: 'Generation of 64 GBd 4ASK signals using a silicon-organic hybrid modulator at 80°C,' Opt. Express 24 (2016) 9389–9396
  278. Lauermann, M.; Weimann, C.; Knopf, A.; Heni, W.; Palmer, R.; Koeber, S.; Elder, D. L.; Bogaerts, W.; Leuthold, J.; Dalton, L. R.; Rembe, C.; Freude, W.; Koos, C.: 'Integrated optical frequency shifter in silicon-organic hybrid (SOH) technology,' Opt. Express 24 (2016) 11694–11707
  279. Muehlbrandt, S.; Melikyan, A.; Harter, T.; Köhnle, K.; Muslija, A.; Vincze, P.; Wolf, S.; Jakobs, P.; Fedoryshyn, Y.; Freude, W.; Leuthold, J.; Koos, C.; Kohl, M.: 'Silicon-plasmonic internal-photoemission detector for 40 Gbit/s data reception,' Optica 3 (2016) 741–747
  280. Worms, K.; Klamouris, C.; Wegh, F.; Meder, L.; Volkmer, D.; Philipps, S. P.; Reichmuth, S. K.; Helmers, H.; Kunadt, A.; Vourvoulakis, J.; Bett, A. W.; Koos, C.; Freude, W.; Leuthold, J.; Stork, W.: 'Reliable and lightning-safe monitoring of wind turbine rotor blades using optically powered sensors,' Wind Energy, August (2016). wileyonlinelibrary.com
  281. Schneider, S.; Eppler, F.; Weber, M.; Olowojoba, G.; Weiss, P.; Hübner, C.; Mikonsaari, I.; Freude, W.; Koos, C.: 'Multiscale dispersion-state characterization of nanocomposites using optical coherence tomography,' Scientific Reports 6 (2016) 31733
  282. Marin-Palomo, P.; Kemal, J. N.; Karpov, M.; Kordts, A.; Pfeifle, J.; Pfeiffer, 1, M. H. P.; Trocha, P.; Wolf, S.; Brasch, V.; Rosenberger, R.; Vijayan, K.; Freude, W.; Kippenberg, T.  J.; Koos, C.: 'Microresonator solitons for massively parallel coherent optical communications,' arXiv:1610.01484v4 October (2016). See also [286]. 
  283. Kemal, J. N.; Pfeifle, J.; Marin-Palomo, P.; Deseada Gutierrez Pascual, M.; Wolf, S.; Smyth, F.; Freude, W.; Koos, C.: 'Multi-wavelength coherent transmission using an optical frequency comb as a local oscillator,' Opt. Express 24 (2016) 25432–25445

    2017
  284. Li, H.; Hiremath, K. R.; Rieder, A.; Freude, W.: 'Adaptive wavelet collocation method for simulation of a 2D micro-ring resonator,' Optik 131 (2017) 655
  285. Wondimu, S. F.; von der Ecken, S.; Ahrens, R.; Freude, W.; Guber, A. E.; Koos, C.: 'Integration of digital microfluidics with whispering-gallery mode sensors for label-free detection of biomolecules,' Royal Soc. Chem., Lab Chip 17 (2017) 1740–1748. Supplementary Information available
  286. Marin-Palomo, P.; Kemal, J. N.; Karpov, M.; Kordts, A.; Pfeifle, J.; Pfeiffer, M.; Trocha, P.; Wolf, S.; Brasch, V.; Anderson, M. H.; Rosenberger, R.; Vijayan, K.; Freude, W.; Kippenberg, T. J.; Koos, C.: 'Microresonator-based solitons for massively parallel coherent optical communications,' Nature 546 (2017) 274–279. See also [282]. 
    Torres-Company, V.: 'Optical physics: One ring to multiplex them all,'  Nature News & Views 546 (2017) 214–215
  287. Dietrich, P.-I.; Harris, R. J.; Blaicher, M.; Corrigan, M. K.; Morris, T. M.; Freude, W.; Quirrenbach, A.; Koos, C.: 'Printed freeform lens arrays on multi-core fibers for highly efficient coupling in astrophotonic systems,' Opt. Express 25 (2017), 18288–18295
  288. Heni, W.; Kutuvantavida, Y.; Haffner, C.; Zwickel, H.; Kieninger, C.; Wolf, S.; Lauermann, M.; Fedoryshyn, Y.; Tillack, A. F.; Johnson, L. E.; Elder, D. L.; Robinson, B. H.; Freude, W.; Koos, C.; Leuthold, J.; Dalton, L. R.: 'Silicon-organic and plasmonic-organic hybrid photonics,' ACS Photonics 4 (2017) 1576–1590
  289. Weimann, C.; Lauermann, M.; Hoeller, F.; Freude, W.; Koos, C.: 'Silicon photonic integrated circuit for fast and precise dual-comb distance metrology,' Opt. Express 25 (2017) 30091–30104
  290. Zwickel, H.; Wolf, S.; Kieninger, C.; Kutuvantavida, Y.; Lauermann, M.; De Keulenaer, T.; Vyncke, A.; Vaernewyck, R.; Luo, J.; Jen, A. K. -Y.; Freude, W.; Bauwelinck, J.; Randel, S.; Koos, C.: 'Silicon-organic hybrid (SOH) modulators for intensity-modulation / direct-detection links with line rates of up to 120 Gbit/s,' Opt. Express 25 (2017) 23784–23800

    2018
  291. Wolf, S.; Zwickel, H.; Kieninger, C.; Lauermann, M.; Hartmann, W.; Kutuvantavida, Y.; Freude, W.; Randel, S.; Koos, C.: 'Coherent modulation up to 100 GBd 16QAM using silicon-organic hybrid (SOH) devices,' Opt. Express 26 (2018) 220–232
  292. Trocha, P.; Karpov, M.; Ganin, D.; Pfeiffer, M. H. P.; Kordts, A.; Wolf, S.; Krockenberger, J.; Marin-Palomo, P.; Weimann, C.; Randel, S.; Freude, W.; Kippenberg, T. J.; Koos, C.: 'Ultrafast optical ranging using microresonator soliton frequency combs,' Science 359 (2018) 887–891
  293. Wolf, S.; Zwickel, H.; Hartmann, W.; Lauermann, M.; Kutuvantavida, Y.; Kieninger, C.; Altenhain, L.; Schmid, Rolf; Luo, J.; Jen, A. K. -Y.; Randel, S.; Freude, W.; Koos, C.: 'Silicon-organic hybrid (SOH) Mach-Zehnder modulators for 100 Gbit/s on-off keying,' Scientific Reports 8 (2018) 2598
  294. Wondimu, S. F.; Hippler, M.; Hussal, C.; Hofmann, A.; Kraemmer, S.; Lahann, J.; Kalt, H.; Freude, W.; Koos, C.: 'Robust label-free biosensing using microdisk laser arrays with on-chip references,' Opt. Express 26 (2018) 3161–3173
  295. Dietrich, P.-I.; Blaicher, M.; Reuter, I.; Billah, M.; Hoose, T.; Hofmann, A.; Caer, C.; Dangel, R.; Offrein, B.; Troppenz, U.; Moehrle, M.; Freude, W.; Koos, C.: 'In situ 3D nanoprinting of free-form coupling elements for hybrid photonic integration,' Nature Photon. 12 (2018) 241–247
  296. Kieninger, C.; Kutuvantavida, Y.; Miura, H.; Kemal, J. N.; Zwickel, H.; Qiu, F.; Lauermann, M.; Freude, W.; Randel, S.; Yokoyama, S.; Koos, C.: 'Demonstration of long-term thermally stable silicon-organic hybrid modulators at 85°C,' Opt. Express 26 (2018) 27955–27964
  297. Billah, M. R.; Blaicher, M.; Hoose, T.; Dietrich, P.-I.; Marin-Palomo, P.; Lindenmann, N.; Nesic, A.; Hofmann, A.; Troppenz, U.; Moehrle, M.; Randel, S.; Freude, W.; Koos, C.: 'Hybrid integration of silicon photonics circuits and InP lasers by photonic wire bonding,' Optica 5 (2018) 876–883
  298. Kieninger, C.; Kutuvantavida, Y.; Elder, D. L.; Wolf, S.; Zwickel, H.; Blaicher, M.; Kemal, J. N.; Lauermann, M.; Randel, S.; Freude, W.; Dalton, L. R.; Koos, C.: 'Ultra-high electro-optic activity demonstrated in a silicon-organic hybrid modulator,' Optica 5 (2018) 739–748
  299. Milvich, J.; Kohler, D.; Freude, W.; Koos, C.: 'Surface sensing with integrated optical waveguides: a design guideline,' Opt. Express 26 (2018) 19885–19906
  300. Harter, T.; Muehlbrandt, S.; Ummethala, S.; Schmid, A.; Nellen, S.; Hahn, L.; Freude, W.; Koos, C.: 'Silicon–plasmonic integrated circuits for terahertz signal generation and coherent detection,' Nature Photon. 12 (2018) 625–633
  301. Weimann, C.; Messner, A.; Baumgartner, T.; Wolf, S.; Hoeller, F.; Freude, W.; Koos, C.: 'Fast high-precision distance metrology using a pair of modulator-generated dual-color frequency combs,' Opt. Express 26 (2018), 34305–34335
  302. Zwickel, H.; Kemal, J. N.; Kieninger, C.; Kutuvantavida, Y.; Rittershofer, J.; Lauermann, M.; Freude, W.; Randel, S.; Koos, C.: 'Electrically packaged silicon-organic hybrid (SOH) I/Q-modulator for 64 GBd operation,' Opt. Express 26 (2018) 34580–34591

    2019
  303. Nesic, A.; Blaicher, M.; Hoose, T.; Hofmann, A.; Lauermann, M.; Kutuvantavida, Y.; Nollenburg, M.; Randel, S.; Freude, W.; Koos, C.: 'Photonic-integrated circuits with non-planar topologies realized by 3D-printed waveguide overpasses,' Opt. Express 27 (2019) 17402–17425
  304. Ummethala, S.; Harter, T.; Koehnle, K.; Li, Z.; Muehlbrandt, S.; Kutuvantavida, Y.; Kemal, J.; Marin-Palomo, P.; Schaefer, J.; Tessmann, A.; Garlapati, S. K.; Bacher, A.; Hahn, L.; Walther, M.; Zwick, T.; Randel, S.;  Freude, W.; Koos, C.: 'THz-to-optical conversion in wireless communications using an ultra-broadband plasmonic modulator,' Nature Photon. 13 (2019) 519–524
  305. Harter, T.; Ummethala, S.; Blaicher, M.; Muehlbrandt, S.; Wolf, S.; Weber, M.; Adib, M. M. H.; Kemal, J. N.; Merboldt, M.; Boes, F.; Nellen, S.; Tessmann, A.; Walther, M.; Globisch, B.; Zwick, T.; Freude, W.; Randel, S.; Koos, C.: 'Wireless THz link with optoelectronic transmitter and receiver,' Optica 6 (2019) 1063–1070
  306. Füllner, C.; Adib, M. M. H.; Wolf, S.; Kemal, J. N.; Freude, W.; Koos, C.; Randel, S.: 'Complexity analysis of the Kramers–Kronig receiver,' J. Lightw. Technol. 37 (2019) 4295–4307
  307. Kemal, J. N.; Marin-Palomo, P.; Panapakkam, V.; Trocha, P.; Wolf, S.; Merghem, K.; Lelarge, F.; Ramdane, A.; Randel, S.; Freude, W.; Koos, C.: 'Coherent WDM transmission using quantum-dash mode-locked laser diodes as multi-wavelength source and local oscillator,' Opt. Express 27 (2019) 31164–31175
  308. Marin-Palomo, P.; Kemal, J. N.; Trocha, P.; Wolf, S.; Merghem, K.; Lelarge, F.; Ramdane, A.; Freude, W.; Randel, S.; Koos, C.: 'Comb-based WDM transmission at 10 Tbit/s using a DC-driven quantum-dash mode-locked laser diode,' Opt. Express 27 (2019) 31110–31129
  309. Dietrich, P.-I.; Goering, G.; Trappen, M.; Blaicher, M.; Freude, W.; Schimmel, T.; Hoelscher, H.; Koos, C.: '3D-printed scanning-probe microscopes with integrated optical actuation and read-out,' Small (2019) 1904695 

    2020
  310. Kohler, D.; Allegro, I.; Wondimu, S. F.; Hahn, L.; Freude, W.; Koos, C.: 'Lasing in Si3N4-organic hybrid (SiNOH) waveguides,' Opt. Express 28, 5085–5104
  311. Blaicher, M.; Billah, M. R.; Kemal, J.; Hoose, T.; Marin-Palomo, P.; Hofmann, A.; Kutuvantavida, Y.; Kieninger, C.; Dietrich, P.-I.; Lauermann, M.; Wolf, S.; Troppenz, U.; Moehrle, M.; Merget, F.; Skacel, S.; Witzens, J.; Randel, S.; Freude, W.; Koos, C.: 'Hybrid multi-chip assembly of optical communication engines by in situ 3D nano-lithography,' Light: Science & Applications 9 (2020) 71
  312. Kemal, J. N.; Marin-Palomo, P.; Karpov, M.; Anderson, M. H.; Freude, W.; Kippenberg, T. J.; Koos, C.: 'Chip-based frequency combs for wavelength-division multiplexing applications'. In: Willner, A. E. (Ed): 'Optical Fiber Telecommunications VII', 7th Ed. World Scientific 2020, Chapter 2, pp. 51–102. ISBN 978-981-4699-22-8
  313. Marin-Palomo, P.; Kemal, J. N.; Kippenberg, T. J.; Freude, W.; Randel, S.; Koos, C.: 'Performance of chip-scale optical frequency comb generators in coherent WDM communications,' Opt. Express 28 (2020) 12897–12910
  314. Zwickel, H.; Singer, S.; Kieninger, C.; Kutuvantavida, Y.; Muradyan, N.; Wahlbrink, T.; Yokoyama, S.; Randel, S.; Freude, W.; Koos, C.: 'Verified equivalent-circuit model for slot-waveguide modulators,' Opt. Express 28 (2020) 12951–12976
  315. Kemal, J. N.; Pfeifle, J.; Marin-Palomo, P.; Desedea Guiterrez Pascual, M.; Wolf, S.; Smyth, F.; Freude, W.; Koos, C.: 'Multi-wavelength coherent transmission using an optical frequency comb as a local oscillator,' Opt. Express 24 (2020) 25432–25445
  316. Kemal, J. N.; Marin-Palomo, P.; Merghem, K.; Aubin, G.; Lelarge, F.; Ramdane, A.; Randel, S.; Freude, W.; Koos, C.: '32QAM WDM transmission at 12 Tbit/s using a quantum-dash mode-locked laser diode (QD-MLLD) with external-cavity feedback,' Opt. Express 28 (2020) 23594–23608
  317. Kieninger, C.; Füllner, C.; Zwickel, H.; Kutuvantavida, Y.; Kemal, J. N.; Eschenbaum, C.; Elder, D. L.; Dalton, L. R.; Freude, W.; Randel, S.; Koos, C.: 'Silicon-organic hybrid (SOH) Mach-Zehnder modulators for 100 GBd PAM4 signaling with sub-1 dB phase-shifter loss,' Opt. Express 28 (2020) 24693–24707
  318. Harter, T.; Füllner, C.; Kemal, J. N.; Ummethala, S.; Steinmann, J. L.; Brosi, M.; Hesler, J. L.; Bründermann, E.;  Müller, A.-S.; Freude, W.; Randel, S.; Koos, C.: 'Generalized Kramers–Kronig receiver for coherent terahertz communications,' Nature Photon. 14 (2020) 601–606
  319. Trappen, M.; Blaicher, M.; Dietrich, P.-I.; Dankwart, C.; Xu, Y.; Hoose, T.; Billah, M. R.; Abbasi, A.; Baets, R.; Troppenz, U.; Theurer, A.; Woerhoff, K.; Seyfried, M.; Freude, W.; Koos, C.: '3D-printed optical probes for wafer-level testing of photonic integrated circuits,' Opt. Express 28 (2020) 37996–38007

    2021
  320. Ummethala, S.; Kemal, J. N.; Alam, A. S.; Lauermann, M.; Kuzmin, A.; Kutuvantavida, Y.; Nandam, S. H.; Hahn, L.; Elder, D. L.; Dalton, L. R., Zwick, T.; Randel, S.; Freude,W.; Koos, C.: 'Hybrid electro-optic modulator combining silicon photonic slot waveguides with high-k radio-frequency slotlines,'  Optica 8 (2021) 511–519
  321. Trocha, P.; Gärtner, J.; Marin-Palomo, P.; Freude, W.; Reichel, W.; Koos, C.: 'Analysis of Kerr comb generation in silicon microresonators under the influence of two-photon absorption and fast free-carrier dynamics,' Phys. Rev. A 103 (2021) 063515
  322. Kohler, D.; Schindler, G.; Hahn, L.; Milvich, J.; Hofmann, A.; Laenge, K.; Freude, W.; Koos, C.: 'Biophotonic sensors with integrated Si3N4-organic hybrid (SiNOH) lasers for point-of-care diagnostics,' Light: Science & Applications 10 (2021) 64
  323. Muehlbrandt, S.; Harter, T.; Füllner, C.; Ummethala, S.; Wolf, S.; Bacher, A.; Hahn, L.; Kohl, M.; Freude, W.; Koos, C.: 'Field-effect silicon-plasmonic photodetector for coherent T-wave reception,' Opt. Express 29 (2021) 21586–21602 (Editor's Pick)
  324.  Xu, Y.; Maier, P.; Blaicher, M.; Dietrich, P.-I.; Marin-Palomo, P.; Hartmann, W.; Bao, Y.; Peng, H.; Billah, M. R.; Singer, S.; Troppenz, U.; Moehrle, M.; Randel, S.; Freude, W.; Koos, C.: 'Hybrid external-cavity lasers (ECL) using photonic wire bonds as coupling elements,'  Scientific Reports 11 (2021) 16426
  325. Xu, Y.; Kuzmin, A.; Knehr, E.; Blaicher, M.; Ilin, K.; Dietrich, P.-I.; Freude, W.; Siegel, M.; Koos, C.: 'Superconducting nanowire single-photon detector with 3D-printed free-form microlenses,' Opt. Express 29 (2021) 27708–27731
  326. Milvich, J.; Kohler, D.; Freude, W.; Koos, C.: 'Integrated phase-sensitive photonic sensors: a system design tutorial,' Adv. Opt. Photon. 13 (2021) 584–642
  327. Freude, W.; Füllner, C.; Harter, T.; Koos, C.; Randel, S.: 'Wireless THz transmission using a Kramers-Kronig receiver'. In: Kürner, T.; Mittleman, D. M.; Nagatsuma, T. (Eds): 'THz Communications Paving the Way Towards Wireless Tbps', Springer Series in Optical Sciences 2021, Vol. 234, Chapter 48, pp. 481–485. ISBN 978-3-030-73738-2

    2022
  328. Trocha, P.; Kemal, J. N.; Gaimard, Q.; Aubin, G.; Lelarge, F.; Ramdane, A.; Freude, W.; Randel, S.; Koos, C.: 'Ultra-fast optical ranging using quantum-dash mode-locked laser diodes,' Scientific Reports 12 (2022) 1076 
  329. Fang, D.; Zazzi, A.; Müller, J.; Drayss, D.; Füllner, C.; Marin-Palomo, P.; Mashayekh, A. T.; Das, A. D.; Weizel, M.; Gudyriev, S.; Freude, W.; Randel, S.; Scheytt, J. C..; Witzens, J.; Koos, C.: 'Optical arbitrary waveform measurement (OAWM) using silicon photonic slicing filters,' J. Lightw. Technol. 40 (2022) 1705–1717
  330. Adib, M. M. H.; Füllner, C.; Kemal, J. N.; Marin-Palomo, P.; Ramdane, A.; Koos, C.; Freude, W.; Randel, S.: 'Colorless coherent TDM-PON based on a frequency-comb laser,' J. Lightw. Technol. 40 (2022) 4287–4299 
  331. Nesic, A.; Blaicher, M.; Orlandini, E.; Olariu, T.; Paszkiewicz, M.; Negredo, F.; Kraft, P.; Sukhova, M.; Hofmann, A.; Dorfler, W.; Rockstuhl, C.; Freude, W.; Koos, C.: 'Transformation-optics modeling of 3D-printed freeform waveguides,' Opt. Express 30 (2022) 38856–38879
  332. Singer, S.; Xu, Y.; Skacel, S. T.; Bao, Y.; Zwickel, H.; Maier, P.; Freter, L.; Dietrich, P.-I.; Kaschel, M.; Menzel, C.; Randel, S.; Freude, W.; Koos, C.: '3D-printed facet-attached optical elements for beam shaping in optical phased arrays,' Opt. Express 30 (2022) 46564–46574
  333. Maier, P.; Xu, Y.; Trappen, M.; Lauermann, M.; Henniger-Ludwig, A.; Kapim, H.; Kind, T.; Dietrich, P.-I.; Weber, A.; Blaicher, M.; Wurster, C.; Randel, S.; Freude, W.; Koos, C.: '3D-printed facet-attached optical elements for connecting VCSEL and photodiodes to fiber arrays and multi-core fibers,' Opt. Express 30 (2022) 46602–46625

    2023
  334. Maier, P.; Chen, Y.; Xu, Y.; Bao, Y.; Blaicher, M.; Geskus, D.; Dekker, R.; Liu, J.; Dietrich, P.-I.; Peng, H.; Randel, S.; Freude, W.; Kippenberg, T. J.; Koos, C.: 'Sub-kHz-linewidth external-cavity laser (ECL) with Si3N4 resonator used as a tunable pump for a Kerr frequency comb,' J. Lightw. Technol. 11 (2023) 3479–3490
  335. Xu, Y.; Maier, P.; Trappen, M.; Dietrich, P.-I.; Blaicher, M.; Jutas, R.; Weber, A.; Kind, T.; Dankwart, C.; Stephan, J.; Steffan, A.; Abbasi, A.; Morrissey, P.; Gradkowski, K.; Kelly, B.; O'Brien, P.; Freude, W.; Koos, C.: '3D-printed facet-attached microlenses for advanced photonic system assembly,' Light: Advanced Manufacturing 4 (2023) 77–93
  336. Nesic, A.; Blaicher, M.; Marin-Palomo, P.; Fuellner, C.; Randel, S.; Freude, W.; Koos, C.: 'Ultra-broadband polarisation beam splitters and rotators based on 3D-printed waveguides,' Light: Advanced Manufacturing 4 (2023) 251–262
  337.  Drayss, D.; Fang, D.; Fuellner, C.; Lihachev, G.; Henauer, T.; Chen, Y.; Peng, H.; Marin-Palomo, P.; Zwick, T.; Freude, W.; Kippenberg, T. J.; Randel, S.; Koos, C.: 'Non-sliced optical arbitrary waveform measurement (OAWM) using soliton microcombs,' Optica 10 (2023) 888–896