DocumentCode :
982100
Title :
Prevention of gain saturation by multi-layer quantum dot lasers
Author :
Schmidt, Oliver G. ; Kirstaedter, N. ; Ledentsov, Nikolay N. ; Mao, M.-H. ; Bimberg, Dieter ; Ustinov, V.M. ; Egorov, A.Y. ; Zhukov, A.E. ; Maximov, M.V. ; Kop´ev, P.S. ; Alferov, Z.I.
Author_Institution :
Inst. fur Festkorperphys., Tech. Univ. Berlin
Volume :
32
Issue :
14
fYear :
1996
fDate :
7/4/1996 12:00:00 AM
Firstpage :
1302
Lastpage :
1304
Abstract :
The authors compare the threshold current density jth against the laser length of a single layer quantum dot (SLQD) laser with a sixfold multilayer quantum dot (MLQD) laser. Gain saturation is not observed in the MLQD laser. They calculate jth against the number of dot layers including gain saturation. The strong impact of thermal coupling of carriers on jth is demonstrated
Keywords :
current density; semiconductor lasers; semiconductor quantum dots; dot layers; gain saturation; injection lasers; laser length; multi-layer quantum dot lasers; thermal coupling; threshold current density;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19960851
Filename :
503638
Link To Document :
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