DocumentCode :
1113977
Title :
Narrow stripe graded barrier single quantum well lasers-threshold current considerations
Author :
Patel, Navin B. ; Mattos, T.J.S. ; Prince, Francisco C. ; Nunes, A.S., Jr.
Author_Institution :
Instituto de Física, Sao Paulo, Brazil
Volume :
23
Issue :
6
fYear :
1987
fDate :
6/1/1987 12:00:00 AM
Firstpage :
988
Lastpage :
992
Abstract :
It is observed that narrow stripe graded barrier single quantum well lasers are relatively high threshold current devices ( > 50 mA), even though made from wafers with extremely low broad area threshold current density (<300 A/cm2). Besides, they show a complex time-dependent lasing behavior with sequential lasing from the n = 2 and n = 1 quantum levels. It is shown here that these properties are inherent to narrow stripe gain-guided SQW lasers and are dictated by the nature of the optical gain curve of the quantum well.
Keywords :
Quantum-well laser; Current density; DH-HEMTs; Gallium arsenide; Laser applications; Laser theory; Optical arrays; Optical modulation; Quantum well lasers; Temperature; Threshold current;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1987.1073457
Filename :
1073457
Link To Document :
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