Title :
Mutual injection locking of a fibre laser and a DFB semiconductor laser
Author :
Liou, L.W. ; Yu, M. ; Yoshino, T. ; Agrawal, G.P.
Author_Institution :
Rochester Univ., NY, USA
fDate :
1/5/1995 12:00:00 AM
Abstract :
A fibre laser and a distributed feedback (DFB) laser are coupled through a 50:50 fibre coupler in such a way that the two lasers mutually injection-lock. The DFB laser forces the fibre laser to oscillate in a nearly single longitudinal mode. At the same time, the linewidth of the DFB laser is reduced to below 1.5 MHz because of mutual injection-loading
Keywords :
distributed feedback lasers; fibre lasers; laser mode locking; optical fibre couplers; semiconductor lasers; spectral line narrowing; DFB semiconductor laser; distributed feedback laser; fibre coupler; fibre laser; linewidth; mutual injection locking; single longitudinal mode;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950003
