Improvement of short pulse operation of AlGaAs quantum-well lasers by temperature increase
作者:
I. Y. Khrushchev,
I. H. White,
R. V. Penty,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 72,
issue 3
页码: 281-283
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.120748
出版商: AIP
数据来源: AIP
摘要:
A theoretical model has been formulated using lumped rate equations to analyze the temperature dependence of theQ-switched (i.e., saturable absorber operated) and gain-switched operation of a quantum-well laser. The results are found to agree with experimental results obtained from AlGaAs quantum-well devices, and show that improvement in the pulse energy inQ-switched and gain-switched lasers can be achieved by optimizing the operating temperature above room temperature. With increasing temperature, the pulse energy increases due to the pulses broadening while the peak power remains approximately constant. The effect is mainly attributed to the decrease of the gain with temperature. ©1998 American Institute of Physics.
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