Title :
Characteristics of linewidth narrowing of a 1.5 ¿m DFB laser with a short GRIN-rod external coupled cavity
Author :
Lee, T.P. ; Menocal, S.G. ; Matsumura, Hiroshi
Author_Institution :
Bell Communications Research, Murray Hill, USA
Abstract :
A short GRIN-rod is coupled to a 1.5 ¿m InGaAsP DFB laser to achieve a linewidth reduction from 34 MHz to 1.5 MHz at 2.5 mW. Characteristics of linewidth narrowing with respect to the displacement of the GRIN-rod, the laser temperature and the driving current are presented.
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; indium compounds; laser cavity resonators; semiconductor junction lasers; DFB laser; III-V semiconductors; InGaAsP; driving current; laser temperature; linewidth narrowing; short GRIN-rod external coupled cavity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850465
