Title :
Analysis of the spectral linewidth of distributed feedback laser diodes
Author :
Kojima, Keisuke ; Kyuma, K.
Author_Institution :
Mitsubishi Electric Corporation, Central Research Laboratory, Amagasaki, Japan
Abstract :
The spectral linewidth of DFB laser diodes is analysed. DFB lasers with long cavities are shown to have very narrow spectral linewidth, and it is further narrowed if a phase shift is introduced at the centre of the cavities.
Keywords :
III-V semiconductors; aluminium compounds; distributed feedback lasers; gallium arsenide; semiconductor junction lasers; spectral line breadth; AlGaAs-GaAs laser diodes; distributed feedback laser diodes; doping optimisation; gratings; interface quality; long cavity; narrow spectrum; phase shift; quantum efficiency; semiconductor laser; spectral linewidth;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840590
