Effects of electron–hole energy transfer on the nonlinear gain coefficients in the small-signal modulation response of semiconductor lasers
作者:
Chin-Yi Tsai,
Fang-Ping Shih,
Chih-Hsiung Chen,
Tsu-Yin Wu,
Tien-Li Sung,
Chin-Yao Tsai,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 71,
issue 13
页码: 1747-1749
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.119388
出版商: AIP
数据来源: AIP
摘要:
The effects of energy transfer between electrons and holes on the small-signal modulation response of semiconductor lasers are theoretically investigated. We calculate the electron energy relaxation time due to electron–hole scattering from the first principle. We show that its value is comparable to the electron energy relaxation time due to the electron–LO phonon scattering with the effect of nonequilibrium LO phonons. In such a case, the nonlinear gain coefficient due to carrier heating defined in the small-signal modulation response of semiconductor lasers is no longer a simple sum of the term due to electron heating and that due to hole heating. ©1997 American Institute of Physics.
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