Wavelength stabilizer for telecommunication lasers: design and optimization

Author

Colace, Lorenzo ; Masini, Gianlorenzo ; Assanto, Gaetano

Author_Institution

Dept. of Electron. Eng., Univ. Roma Tre, Rome, Italy

Volume

21

Issue

8

fYear

2003

Firstpage

1749

Lastpage

1757

Abstract

We introduce a novel method for the wavelength stabilization of semiconductor lasers for telecommunications. The approach is based on a wavelength-sensitive photodetector which, in a feedback system, generates an error signal apt to tune the source to the desired value. We extensively investigate the influence of various design parameters on performance figures such as tunability, steady-state error, and temperature dependence, as well as fabrication tolerances. The results are compared with standard specifications for wavelength-division-multiplexed optical communications with various channel spacings.

Keywords

laser feedback; laser frequency stability; optical communication equipment; photodetectors; semiconductor lasers; telecommunication channels; wavelength division multiplexing; channel spacings; design parameters; error signal; fabrication tolerances; feedback system; laser design optimization; semiconductor lasers; standard specifications; steady-state error; telecommunication lasers; telecommunications; temperature dependence; tunability; wavelength stabilizer; wavelength-division-multiplexed optical communications; wavelength-sensitive photodetector; Design optimization; Laser feedback; Laser stability; Laser tuning; Optical design; Optical feedback; Photodetectors; Semiconductor lasers; Signal generators; Steady-state;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2003.815638

Filename

1219542