Recursive simulation models of the semiconductor laser modulation characteristics for accurate performance evaluation of coherent optical CPFSK systems

Author

Roudas, Ioannis ; Jaouën, Yves ; Prado, Jacques ; Vallet, Robert ; Gallion, Philippe

Author_Institution

Bellcore, Red Bank, NJ, USA

Volume

13

Issue

11

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

2258

Lastpage

2269

Abstract

Modeling of the semiconductor laser nonuniform FM response and residual IM modulation is essential for the computer-aided design of coherent optical communication systems. This paper presents an accurate simulation model, in which the FM and IM responses are represented by recursive digital filters derived directly from measurements. A comparison with previous models of the bibliography reveals the advantages of the current approach. The proposed modeling procedure is applied in the case of a single-electrode DFB laser. This DFB model, in combination with a semi-analytical technique for the evaluation of the error probability, is used to study the influence of the modulation characteristics on the performance of a coherent heterodyne CPFSK system with differential receiver operating at 1 Gb/s. Theoretical and experimental results are in excellent agreement

Keywords

distributed feedback lasers; electro-optical modulation; frequency modulation; frequency shift keying; laser theory; optical transmitters; recursive filters; semiconductor device models; semiconductor lasers; 1 Gbit/s; FM response; IM response; accurate performance evaluation; coherent heterodyne CPFSK system; coherent optical CPFSK systems; coherent optical communication systems; computer-aided design; differential receiver; error probability; recursive digital filters; recursive simulation models; residual IM modulation; semi-analytical technique; semiconductor laser modulation characteristics; semiconductor laser nonuniform FM response; simulation model; single-electrode DFB laser; Computational modeling; Frequency modulation; Laser modes; Laser theory; Optical feedback; Optical filters; Optical mixing; Optical receivers; Optical transmitters; Semiconductor lasers;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.482046

Filename

482046