DocumentCode
1005701
Title
Reduction of laser chirp in 1.5 μm DFB lasers by modulation pulse shaping
Author
Bickers, L. ; Westbrook, L.D.
Author_Institution
British Telecom Research Laboratories, Ipswich, UK
Volume
21
Issue
3
fYear
1985
Firstpage
103
Lastpage
104
Abstract
The dynamic linewidth of 1.5 μm ridge waveguide DFB lasers is shown to be reduced by shaping the pulse of the laser modulating waveform. Pulse shaping is performed by a second-order network designed to cancel the small-signal laser resonance. Results demonstrate a dynamic linewidth reduction from 1.4 Ã… to 0.55 Ã… FWHM for a 500 ps pulse.
Keywords
distributed feedback lasers; optical modulation; pulse shaping circuits; spectral line breadth; 1.5 micron laser; dynamic linewidth; laser chirp; modulation pulse shaping; ridge waveguide DFB lasers; second-order network; small-signal laser resonance;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19850071
Filename
4250880
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