Title :
Thermal-time response measurement of a distributed feedback laser using coherent reflectometry
Author :
Saavedra, A.A. ; von der Weld, J.P. ; Passy, R.
Author_Institution :
Center of Telecommun. Studies, Pontificia Univ. Catolica do Rio de Janeiro, Brazil
Abstract :
The thermal behavior of distributed feedback semiconductor lasers, with two different structures, was investigated by using a coherent reflectometry system. The thermal-time responses were estimated for step modulated laser operation and it was possible to analyze the influence of the package on the total response, this is an important limitation in the linearity of optical frequency sweep in optical frequency domain reflectometry. The influence of the amplitude and frequency modulation was also investigated
Keywords :
amplitude modulation; distributed feedback lasers; frequency modulation; optical modulation; optical testing; optical time-domain reflectometry; semiconductor lasers; thermal variables measurement; time measurement; amplitude modulation; coherent reflectometry; coherent reflectometry system; distributed feedback semiconductor lasers; frequency modulation; optical frequency domain reflectometry; optical frequency sweep linearity; step modulated laser operation; thermal behavior; thermal-time response measurement; total response; Chirp modulation; Distributed feedback devices; Frequency estimation; Laser feedback; Linearity; Optical feedback; Optical modulation; Reflectometry; Semiconductor device packaging; Semiconductor lasers;
Conference_Titel :
Microwave and Optoelectronics Conference, 1995. Proceedings., 1995 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2674-1
DOI :
10.1109/SBMOMO.1995.509686
