Evaluation of filtering effects on optical BPSK systems using external cavity semiconductor lasers

Author

Pires, Jãdo J O ; Rocha, José R Ferreira da

Author_Institution

Dept. of Electr. & Comput. Eng., Inst. Superior Tecnico, Lisboa, Portugal

fYear

1990

fDate

3-6 Sep 1990

Firstpage

21

Lastpage

25

Abstract

The performance of an optical BPSK (binary phase shift keying) heterodyne system using external-cavity semiconductor lasers and a squaring loop carrier recovery circuit is evaluated theoretically via an analytical method. The method is based on the Gram-Charlier series and takes into account the effect of filtering on the baseband signal disturbed by non-Lorentzian phase noise from external-cavity semiconductor lasers and additive Gaussian noise. It is found that the filter decreases the impact of laser phase noise, namely by reducing the degradation due to relaxation oscillations

Keywords

electron device noise; filtering and prediction theory; optical communication equipment; optical modulation; phase shift keying; semiconductor junction lasers; BER; Gram-Charlier series; additive Gaussian noise; analytical method; binary phase shift keying; external cavity semiconductor lasers; filtering effects; heterodyne system; laser phase noise; nonLorentzian phase noise; optical BPSK systems; performance; squaring loop carrier recovery circuit; Binary phase shift keying; Circuits; Filtering; Laser noise; Laser theory; Optical filters; Optical mixing; Optical noise; Phase noise; Semiconductor lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Symposium, 1990. ITS '90 Symposium Record., SBT/IEEE International

Conference_Location

Rio de Janeiro

Type

conf

DOI

10.1109/ITS.1990.175566

Filename

175566