A wavelength locking scheme for semiconductor laser systems based on an interpolation algorithm

Author

Shi, Hanxing ; Tamil, Lakshman S.

Author_Institution

Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA

Volume

16

Issue

7

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

1622

Lastpage

1624

Abstract

An interpolation algorithm technique to automatically lock the wavelength of semiconductor laser systems by balancing the temperature and bias current of the laser is demonstrated. The wavelength accuracy is +20 pm in the bias current range of 30-120 mA for typical distributed feedback lasers and electroabsorption modulated lasers. This method is software based and does not require any optical or electrical wavelength locking circuitry.

Keywords

distributed feedback lasers; electro-optical modulation; electroabsorption; interpolation; laser mode locking; optical communication equipment; semiconductor lasers; wavelength division multiplexing; 30 to 120 mA; distributed feedback lasers; electroabsorption modulated lasers; interpolation algorithm; optical communication; semiconductor laser systems; wavelength locking; wavelength locking scheme; wavelength-division multiplexing; Distributed feedback devices; Interpolation; Laser feedback; Optical receivers; Power generation; Power lasers; Semiconductor lasers; Signal processing algorithms; Temperature dependence; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.829524

Filename

1308244