Title :
Continuously tunable thin active layer and multisection DFB laser with narrow linewidth and high power
Author :
Fukuda, Mitsuo ; Sato, Kenji ; Kondo, Yasuhiro ; Nakao, Masashi
Author_Institution :
NTT Optoelectron. Labs., Kanagawa, Japan
fDate :
10/1/1989 12:00:00 AM
Abstract :
The feasibility of a wavelength tuning range of 1 nm with the spectral linewidth around 2.5 MHz at about 10 mW is demonstrated in thin-active-layer and multisection 1.5-μm distributed feedback (DFB) lasers with long cavities. The tuning range is widened to over 3 nm by combining electric and thermal tuning effects. A flat FM response with an efficiency of over 1 GHz/mA from low to high (around 1 GHz) frequency is also achieved
Keywords :
distributed feedback lasers; frequency modulation; laser cavity resonators; laser tuning; optical modulation; semiconductor junction lasers; 1.5 micron; 10 mW; 2.5 MHz; continuously tunable lasers; distributed feedback lasers; electric tuning effects; flat FM response; high power lasers; long cavity lasers; multisection DFB laser; narrow linewidth; semiconductor lasers; spectral linewidth; thermal tuning effects; thin active layer; wavelength tuning range; Distributed Bragg reflectors; Frequency modulation; Indium phosphide; Laser tuning; Optical buffering; Optical modulation; Optical tuning; Power generation; Power lasers; Tunable circuits and devices;
Journal_Title :
Lightwave Technology, Journal of
