TRANSPORT LIMITS IN HIGH-SPEED QUANTUM-WELL LASERS - EXPERIMENT AND THEORY

被引：118
作者：
NAGARAJAN, R
FUKUSHIMA, T
ISHIKAWA, M
BOWERS, JE
GEELS, RS
COLDREN, LA
机构：
[1] Department of Electrical and Computer Engineering., University of California, Santa, Barbara
[2] Spectra Diode Laboratories, San Jose
[3] Department of Electrical and Computer Engineering, University of California, Toshiba Corp., Santa Barbara, Tokyo
[4] Toshiba Corp., Tokyo
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1992年 / 4卷 / 02期
关键词：
D O I：
10.1109/68.122335
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We show experimentally that the modulation bandwidth of quantum well lasers can be reduced by a factor of six due to carrier transport across undoped layers of the laser as in the separate confinement heterostructure (SCH). We have derived analytical expressions for the modulation response function, resonance frequency, damping rate and K factor to include carrier transport, and show it to be responsible for a low frequency rolloff which limits the modulation response of quantum well lasers. In addition, we also show that carrier transport leads to a reduction in the effective differential gain, while the gain compression factor remains largely unaffected by it.
引用
收藏
页码：121 / 123
页数：3
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