Title :
Spectral characteristics for 1.3 ¿m monolithic external cavity DFB lasers
Author :
Murata, Shotaro ; Yamazaki, Shumpei ; Mito, I. ; Kobayashi, Kaoru
Author_Institution :
NEC Corporation, Opto-Electronics Research Laboratories, Kawasaki, Japan
Abstract :
Spectral characteristics for 1.3¿m monolithic external cavity (MEC) DFB lasers have been studied experimentally. As drive current increased, light output and spectral linewidth were changed periodically. Less than 2 MHz linewidths were obtained at the minimum points of each period. The narrowest beat spectrum linewidth was less than 3MHz with two MEC DFB lasers.
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; gallium compounds; indium compounds; laser cavity resonators; laser transitions; optical communication equipment; optical waveguides; semiconductor junction lasers; spectral line breadth; 1.3 micron; DFB lasers; III-V semiconductors; InGaAsP-InP; drive current; monolithic external cavity; optical communication equipment; optical waveguides; semiconductor lasers; spectral linewidth;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860820
