Publications in 1991


'Optische Nachrichtentechnik. Eine Einführung (Optical Communications)';
Grau G.; Freude W.;
3. Auflage, Berlin, Springer Verlag 1991 (Since 1997 out of print; corrected University reprint available 1998, 1999, 2005 (error correction list available). Send e-mail to W. Freude)


'Taper coupling of laser diode to singlemode fibre: Influence of fibre field shape';
Li Tong-ning; Freude W.;
Electron. Lett., vol. 27, pp. 1202-1203; 1991. Printer's correction: ibid., vol. 27, p. 1599; 1991

'Positive definite and unimodal Gauss-Hermite expansion of probability density functions';
Freude W.;
AEÜ, vol. 45, pp. 89-95; 1991 

'Gaussian Beams and the poincare sphere';
Sauter E. G.;
Microwave and optical technology letters, vol. 4, pp. 485-486; 1991

'Phase noise in coherent systems: Basic model for simulations';
Schönfelder A.;
Electron. Lett., vol. 27, pp. 1725-1727; 1991