DocumentCode
1133523
Title
Spontaneous emission rate of gain-coupled DFB lasers: loss grating against gain grating
Author
Harth, W.
Volume
28
Issue
14
fYear
1992
fDate
7/2/1992 12:00:00 AM
Firstpage
1347
Lastpage
1349
Abstract
For gain-coupled DFB lasers with a gain grating an additional term has to be considered for the spontaneous emission rate, taking into account that the noise source distribution is modulated with the grating period. The basic advantages of a loss-grating as compared with a gain-grating device are narrow linewidth in combination with a high sidemode suppression ratio.
Keywords
diffraction gratings; distributed feedback lasers; electron device noise; laser theory; semiconductor junction lasers; spectral line breadth; superradiance; gain grating; gain-coupled DFB lasers; high sidemode suppression ratio; loss grating; narrow linewidth; noise source distribution; semiconductor lasers; spontaneous emission rate;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19920855
Filename
149398
Link To Document