DocumentCode
995495
Title
Reduction of dynamic linewidth in single-frequency semiconductor lasers
Author
Olshansky, R. ; Fye, D.
Author_Institution
GTE Laboratories Incorporated, Optoelectronic Devices Department, Waltham, USA
Volume
20
Issue
22
fYear
1984
Firstpage
928
Lastpage
929
Abstract
Carrier density oscillations and frequency chirping of pulse code modulated single frequency semiconductor lasers are shown to be greatly reduced by use of a small current step in the leading edge of the drive pulse. For a 100 km single mode fibre link the dispersion power penalty at 1.55 ¿m resulting from dynamic line broadening is predicted to be reduced from 3.7 to 1.0 dB by use of the modified current pulse.
Keywords
carrier density; laser modes; semiconductor junction lasers; spectral line breadth; PCM; carrier density oscillations; dispersion power; drive pulse; dynamic linewidth; frequency chirping; modified current pulse; single mode fibre link; single-frequency semiconductor lasers; small current step;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19840631
Filename
4249143
Link To Document