Title :
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
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;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2003.815638
