DocumentCode
970627
Title
Direct observation of Lorentzian lineshape of semiconductor laser and linewidth reduction with external grating feedback
Author
Saito, Sakuyoshi ; Yamamoto, Yusaku
Author_Institution
NTT, Musashino Electrical Communication Laboratory, Musashino, Japan
Volume
17
Issue
9
fYear
1981
Firstpage
325
Lastpage
327
Abstract
The Lorentzian lineshape of a single longitudinal mode AlGaAs semiconductor laser is directly observed by optical heterodyne detection. A remarkable reduction in the spectral linewidth to less than 50 kHz is achieved with external grating feedback. The experimental linewidth is in reasonable agreement with the theoretical value, which is obtained by finesse calculation of the active Fabry-Perot cavity.
Keywords
III-V semiconductors; aluminium compounds; gallium arsenide; optical communication equipment; semiconductor junction lasers; spectral line breadth; AlGaAs; Lorentzian lineshape; active Fabry-Perot cavity; experimental linewidth; external grating feedback; optical communication equipment; optical heterodyne detection; semiconductor junction laser; semiconductor laser transmitter; single longitudinal mode;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19810229
Filename
4245697
Link To Document