DocumentCode
1003883
Title
Spectral linewidth of external cavity semiconductor lasers with strong, frequency-selective feedback
Author
Wyatt, R.
Author_Institution
British Telecom Research Laboratories, Ipswich, UK
Volume
21
Issue
15
fYear
1985
Firstpage
658
Lastpage
659
Abstract
The spectral linewidth of 1.5 ¿m external cavity semiconductor lasers is investigated. For nonzero intermediate facet reflectivity, detuning from exact resonance is found to reduce linewidths substantially for strong, frequency-selective feedback. A 10 cm cavity gives linewidths below 1 kHz, while coherent systems requirements will be met by cavities under 2.5 cm.
Keywords
laser cavity resonators; semiconductor junction lasers; coherent systems; detuning; external cavity semiconductor lasers; frequency-selective feedback; nonzero intermediate facet reflectivity; spectral linewidth;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19850467
Filename
4250665
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