Join our Team as a Postdoc or PhD Candidate

We are currently looking for ambitious postdocs and PhD candidates with strong theoretical and/or experimental background to join our recently acquired projects.

Postdoctoral candidates should have experience and a proven track record in one of the following fields:

  • Integrated optics and silicon photonics
  • Optical signal processing and nonlinear optics
  • Optical communications and digital signal processing
  • 3D lithography and polymer photonics
  • Optical metrology, sensing, and biophotonics
  • Thz communications and 6G Wireless
  • Space-division multiplexing and optical neural networks
  • Nanofabrication and semi-conductor processing
  • Cryo communications for quantum computers

Applicants should have completed a PhD, Master or an equivalent degree in Electrical Engineering, Photonics, Physics or related fields. We expect excellent writing and oral communication skills along with the ability to work independently. Ambitious postdoctoral researchers might find an excellent opportunity to combine high-level scientific research with leadership responsibilities, thereby gaining experience in building up their own research environment.

Applicants are encouraged to submit their application documents (CV, certificates, references) electronically as one single pdf file to bewerbung does-not-exist.ipq kit edu

Offers for HiWi or Research Internship Positions
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Advertised Positions

Academic Researcher / PhD Candidate (f/m/d)
Optical and Terahertz Communication Systems


Academics / Scientists / Engineers (master´s degree) (f/m/d), PhD students (f/m/d)

Job description

With the growing relevance of internet services for our global society and with the associated growth in data traffic, communication systems and networks demand continuous optimization in terms of data rates and energy efficiency. Both wireless and wired communication systems continue to push technological limits. For example, today's mobile networks are already operating over their licensed spectrum very close to their capacity limit – and the situation is similar with fiber-optic communication systems. In this context, the Institute of Photonics and Quantum Electronics at the Karlsruhe Institute of Technology is conducting research on potentially game-changing technologies such as Tbit/s wireless transmission at carrier frequencies in the (sub-)THz range and space-division multiplexing in optical communications combined with efficient digital multiple-input multiple-output signal processing. Funded by the Federal Ministry of Education and Research of Germany, this research has the goal to significantly increase the data rates in future 6G mobile networks. Within the scope of your work, you will research, design, and realize, for example, a terahertz radio link or optical transmission systems using novel multimode or multicore fibers combining high data rates with superior reliability. Meanwhile, you will develop a holistic understanding of the underlying system concepts and, on this basis, work out concepts for optimized transmit and receive structures. These structures, among other things, make use of the possibilities of digital signal processing and coding. At the same time, you will delve into related sub-aspects such as the development of ultra-compact 3D-printed spatial multiplexers for coherent fiber-optic systems or the design and implementation of novel digital-signal-processing algorithms on FPGAs. The broad range of topics leaves room for creativity and self-selected focus areas. In addition to the scientific work, your responsibilities will include participation in project management and teaching.

Personal qualification

  • You have an excellent master's or equivalent degree in electrical engineering and information technology, physics or in a comparable field.
  • Ideally, you have exceptional expertise and hands-on experience in one or multiple of the following areas: Optical communication systems, high-frequency engineering, communications engineering, digital signal processing.
  • We expect excellent written and oral communication skills in the technical language English and the ability to work independently.


Salary category EG 13, depending on the fulfillment of professional and personal requirements.


More details Apply