Performance analysis of DPSK direct detection optical systems in the presence of interferometric intensity noise

Author

Pires, Joao J O ; Rocha, Jodé R F da

Author_Institution

Dept. of Electr. & Comput. Eng., Tech. Univ. of Lisbon, Portugal

Volume

10

Issue

11

fYear

1992

fDate

11/1/1992 12:00:00 AM

Firstpage

1722

Lastpage

1730

Abstract

The performance of DPSK direct detection optical systems using a dual detector receiver is analyzed by means of a Gauss quadrature rules method. The filtering effects on the intensity noise, resulting from the interferometric conversion of laser phase noise, and the influence of laser relaxation oscillations are also investigated. Linewidth requirements are estimated and compared with that of DPSK heterodyne systems. It is shown that linewidth requirements can be relaxed by a factor of about 0.56, when baseband filtering effects are taken into account

Keywords

light interferometers; optical modulation; optical receivers; phase shift keying; semiconductor device noise; spectral line breadth; DPSK direct detection optical systems; Gauss quadrature rules method; baseband filtering effects; dual detector receiver; filtering effects; interferometric intensity noise; laser phase noise; laser relaxation oscillations; light interferometry; linewidth requirements; optical filters; photodetectors; semiconductor laser noise; Differential quadrature phase shift keying; Filtering; Optical detectors; Optical filters; Optical interferometry; Optical mixing; Optical noise; Optical receivers; Performance analysis; Phase noise;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.184916

Filename

184916