A 250 HZ SPECTRAL LINEWIDTH 1.5 MU-M MQW-DFB LASER DIODE WITH NEGATIVE-ELECTRICAL-FEEDBACK

被引：14

作者：

KOUROGI, M

SHIN, CH

OHTSU, M

机构：

[1] Graduate School at Nagatsuta, Tokyo Institute of Technology, Midori-ku, Kanagawa, Yokohama, 227

[2] Graduate School at Nagatsuta, Tokyo Institute of Technology, National Mokpo Merchant Marine College, Mokpo, Chun-Nam

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1991年 / 3卷 / 06期

关键词：

D O I：

10.1109/68.91012

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：

A 1.5-mu-m corrugation-pitch-modulated MQW-DFB laser diode (LD) with multielectrodes was frequency stabilized by using the negative electrical feedback technique. The FM response of the LD was precisely measured and used for the feedback loop design. The FM noise of the LD was reduced and reached 10 Hz2/Hz at 1 kHz less-than-or-equal-to f less-than-or-equal-to 10 kHz where f is the Fourier frequency, and the resulting spectral linewidth was 250 Hz, which was mainly limited by the IM noise in the lower Fourier frequency range. The controlled power concentration ratio was 99%.

引用

页码：496 / 498

页数：3

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