Title :
Thermal drift in wavelength-switching DFB and DBR lasers
Author :
Saavedra, A.A. ; Passy, R. ; von der Weid, J.P.
Author_Institution :
Centre for Telecommun. Studies, Pontificia Univ. Catolica do Rio de Janeiro
fDate :
4/24/1997 12:00:00 AM
Abstract :
The authors present measurements of the thermally induced optical frequency switch time of DFB and DBR lasers. The technique, based on FMCW interferometry, is applied to five different lasers and the results are in good agreement with the model adopted for the optical frequency variations during step modulation. The system is simple and the parameters obtained are useful to improve the wavelength drift control
Keywords :
distributed Bragg reflector lasers; distributed feedback lasers; light interferometry; optical modulation; optical transmitters; semiconductor lasers; wavelength division multiplexing; FMCW interferometry; optical frequency variations; step modulation; thermal drift; thermally induced optical frequency switch time; wavelength drift control; wavelength-switching DBR lasers; wavelength-switching DFB lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970495
