Title :
Linewidth reduction in DFB laser by detuning effect
Author :
Ogita, S. ; Yano, M. ; Ishikawa, H. ; Imai, H.
Author_Institution :
Fujitsu Laboratories Ltd., Atsugi, Japan
Abstract :
The detuning effect on the spectral linewidth in the DFB laser has been investigated. When we set the lasing wavelength of the DFB laser at the shorter side of the gain peak by 10 nm, a reduction in spectral linewidth of 50% was obtained experimentally. This result agreed with the theoretical prediction.
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; gallium compounds; indium compounds; semiconductor junction lasers; spectral line breadth; DFB laser; InGaAsP-InP laser; detuning effect; gain peak; lasing wavelength; semiconductor laser; spectral linewidth;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870287
