DocumentCode
1498817
Title
Fabrication approach for antiphase narrow linewidth complex coupled 1.55 μm DFB lasers
Author
Schreiner, R. ; Wiedmann, J. ; Coenning, W. ; Porsche, J. ; Gentner, J.L. ; Berroth, M. ; Scholz, F. ; Schweizer, H.
Author_Institution
Universitat Stuttgurt
Volume
35
Issue
2
fYear
1999
Firstpage
147
Lastpage
148
Abstract
A new method for fabricating narrow linewidth antiphase complex coupled MQW DFB lasers by periodically etching the active layer and quarternary InGaAsP overgrowth is reported. The minimum linewidth for a 375 μm long ridge waveguide laser is only 250 kHz at an optical output power of 4 mW.
Keywords
distributed feedback lasers; etching; optical fabrication; quantum well lasers; ridge waveguides; 1.55 micrometre; 375 micron; 4 mW; active layer; antiphase complex; coupled MQW DFB lasers; narrow linewidth lasers; optical output power; periodic etching; quarternary overgrowth; ridge waveguide laser;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19990132
Filename
758024
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