Title :
Influence of mode competition on the fast wavelength switching of an SG-DBR laser
Author :
Yu, Yonglin ; O´Dowd, Ronan
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. Dublin, Ireland
fDate :
4/1/2002 12:00:00 AM
Abstract :
Because the sampled grating distributed Bragg reflector (SG-DBR) laser is among the most attractive sources for wavelength division multiplexing (WDM) systems, it is important and necessary to investigate its wavelength switching characteristics. This behavior will set the capability limits for reallocation in wavelength-routed optical networks. In this paper, that mode competition plays an important role in the wavelength switching dynamics of DBR-type tunable lasers is confirmed experimentally. By using a time-resolved spectrum technique, the loss-dependent mode competition behavior has been directly observed, for the first time, from measurements of wavelength switching on an SG-DBR laser
Keywords :
diffraction gratings; distributed Bragg reflector lasers; laser modes; laser tuning; light interferometry; optical testing; optical transmitters; semiconductor device testing; semiconductor lasers; telecommunication network routing; time resolved spectroscopy; wavelength division multiplexing; DBR-type tunable lasers; SG-DBR laser; WDM; capability limits; fast wavelength switching; loss-dependent mode competition behavior; mode competition; reallocation; sampled grating distributed Bragg reflector laser; time-resolved spectrum technique; wavelength division multiplexing systems; wavelength switching; wavelength switching characteristics; wavelength switching dynamics; wavelength-routed optical networks; Bragg gratings; Distributed Bragg reflectors; Laser modes; Loss measurement; Optical fiber networks; Optical losses; Time measurement; Tunable circuits and devices; Wavelength division multiplexing; Wavelength measurement;
Journal_Title :
Lightwave Technology, Journal of
