EFFECT OF CROSS SATURATION ON FREQUENCY FLUCTUATIONS IN A NEARLY SINGLE-MODE SEMICONDUCTOR-LASER

被引：9
|
作者：
GRAY, GR
AGRAWAL, GP
机构：
[1] Institute of Optics, University of Rochester, Rochester, NY
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1991年 / 3卷 / 03期
关键词：
D O I：
10.1109/68.79754
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：
The effect of side-mode cross saturation on the frequency noise of the main mode is investigated by considering the Langevin rate equations which contain the nonlinear gain with both the self-saturation and cross-saturation terms. When cross saturation is stronger than self saturation, the frequency noise of the main mode is found to be significantly enhanced in the low-frequency regime (< 1 GHz). An increase of more than 20 dB is predicted due to a side mode suppressed by 15-20 dB. The enhanced frequency noise manifests as broadening of the laser linewidth and may affect the performance of coherent optical communication systems.
引用
收藏
页码：204 / 206
页数：3
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