Title :
Interferometric method for preventing mode-hopping in tunable external-cavity semiconductor lasers
Author :
Ohtsu, M. ; Liou, K.-Y. ; Burrows, Ellsworth C ; Burrus, C.A. ; Eisenstein, Gadi
Author_Institution :
AT&T Bell Laboratories, Crawford Hill Laboratory, Holmdel, USA
Abstract :
A problem in frequency-tuning of external-cavity lasers is mode-hopping between neighbouring external-cavity modes. We demonstrate a new interferometric method for monitoring mode-hoping and an automatic control circuit for a 1.3 ¿m grating external-cavity laser that maintains single-mode operation when the lasing frequency is tuned.
Keywords :
laser cavity resonators; laser tuning; semiconductor junction lasers; 1.3 micron; automatic control circuit; frequency-tuning; grating external-cavity laser; interferometric method; mode-hopping; tunable external-cavity semiconductor lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870776
