DocumentCode
1045436
Title
Wide tuning with narrow linewidth in DFB lasers with superstructure grating (SSG)
Author
Tohmori, Y. ; Kano, F. ; Ishii, Hiroyuki ; Yoshikuni, Y. ; Kondo, Yuta
Volume
29
Issue
15
fYear
1993
fDate
7/22/1993 12:00:00 AM
Firstpage
1350
Lastpage
1352
Abstract
A DFB laser with superstructure grating (SSG) is reported. This laser consists of two SSG reflectors with slightly different designs and a phase control region, and it operates at high power at approximately 1.55 mu m. A wide tuning range of 86 nm was obtained by tuning the SSGs in combination. Linewidth characteristics of less than 5 MHz were demonstrated over a tuning range as wide as 50 nm.
Keywords
diffraction gratings; distributed feedback lasers; integrated optics; laser tuning; semiconductor lasers; spectral line breadth; 1.55 micron; DFB lasers; narrow linewidth; phase control region; reflectors; superstructure grating; wide tuning range;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19930905
Filename
274848
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