Title :
Widely tunable sampled grating DBR laser with integrated electroabsorption modulator
Author :
Mason, Beck ; Fish, Greg A. ; DenBaars, Steven P. ; Coldren, Larry A.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
We report on the development of the first widely tunable semiconductor laser with an integrated electroabsorption modulator. The laser is a four-section buried-ridge sampled-grating distributed Bragg reflector design. It has a 41-nm continuous tuning range with a maximum tuning current of 23.5 mA for the hack mirror and 21 mA for the front mirror. The modulator is based on a 0.87-eV bandgap bulk waveguide structure. It is capable of producing more than 22 dB of optical extinction over the entire tuning range of the laser with a -4.0-V bias.
Keywords :
electro-optical modulation; electroabsorption; laser mirrors; laser tuning; quantum well lasers; waveguide lasers; 0.87 eV; 21 mA; 23.5 mA; 4 V; DBR lasers; MQW lasers; four-section buried-ridge sampled-grating distributed Bragg reflector design; integrated electroabsorption modulator; widely tunable sampled grating DBR laser; widely tunable semiconductor laser; Distributed Bragg reflectors; Gratings; Laser tuning; Mirrors; Optical design; Optical tuning; Optical waveguides; Semiconductor lasers; Tunable circuits and devices; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
