Title :
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
fDate :
7/1/2004 12:00:00 AM
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.829524
