Applications of trellis coding to coherent optical communications employing polarisation shift keying modulation

Author

Benedetto, S. ; Milanesi, A. ; Olmo, G. ; Poggiolini, Pierluigi

Author_Institution

Dipartimento di Elettronica, Politecnico Corso Duca degli Abruzzi, Torino, Italy

Volume

27

Issue

12

fYear

1991

fDate

6/6/1991 12:00:00 AM

Firstpage

1061

Lastpage

1063

Abstract

The application of the concept of trellis coded modulation to coherent optical communications using polarisation shift keying modulation is described and analysed. It leads to a receiver formed by a front end which performs the heterodyne detection and the Stokes parameters extraction cascaded with an electronic Viterbi processor operating the maximum likelihood estimate of the transmitted sequence. Results in terms of error event probability obtained analytically and confirmed by simulation show power gains of the order of 3-4 dB without sacrificing bandwidth.

Keywords

codes; decoding; digital communication systems; encoding; light polarisation; optical communication; optical modulation; probability; 3 to 4 dB; Stokes parameters extraction; coherent optical communications; electronic Viterbi processor; error event probability; heterodyne detection; maximum likelihood estimate; polarisation shift keying modulation; power gains; receiver; transmitted sequence; trellis coding;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19910659

Filename

76194