Title :
Tunable DFB lasers with ultra-narrow spectral linewidth
Author :
Okai, M. ; Tsuchiya, Takao
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
A spectral linewidth of less than 98 kHz was achieved in three-section corrugation-pitch-modulated multiquantum-well distributed feedback (CPM-MQW-DFB) lasers over a tuning range of 1.3 nm, while maintaining a constant output power of 10 mW.
Keywords :
distributed feedback lasers; laser tuning; semiconductor lasers; semiconductor quantum wells; 10 mW; 1551 to 1552.3 nm; CPM; output power; three-section corrugation-pitch-modulated MQW DFB lasers; tuning range; ultra-narrow spectral linewidth;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930236
