Title :
Suppression of Thermal Wavelength Drift in Super-Structure Grating Distributed Bragg Reflector (SSG-DBR) Laser with Thermal Drift Compensator
Author :
Fujiwara, Naoki ; Ishii, Hiroyuki ; Okamoto, Hiroshi ; Kawaguchi, Yoshihiro ; Kondo, Yasuhiro ; Oohashi, Hiromi
Author_Institution :
NTT Corp., Kanagawa
Abstract :
Thermal wavelength drift in a super-structure grating distributed Bragg reflector (SSG-DBR) laser is suppressed by introducing a thermal drift compensation waveguide into a DBR laser. Injecting a compensatory current into the thermal drift compensation waveguide greatly suppresses the drift, and also prevents SSG mode hopping during rapid wavelength switching.
Keywords :
distributed Bragg reflector lasers; quantum well lasers; mode hopping; rapid wavelength switching; super structure grating distributed Bragg reflector laser; thermal drift compensation waveguide; thermal drift compensator; thermal wavelength drift; thermal wavelength drift suppression; Biomedical optical imaging; Bragg gratings; Distributed Bragg reflectors; Laser modes; Laser tuning; Light sources; Optical tuning; Optical waveguides; Waveguide lasers; Wavelength division multiplexing; Super-structure grating distributed Bragg reflector (SSG-DBR) laser; thermal drift compensator (TDC); thermal wavelength drift;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2007.906628
