FM NOISE AND SPECTRAL LINEWIDTH REDUCTION BY INCOHERENT OPTICAL NEGATIVE FEEDBACK

被引：42

作者：

YASAKA, H ^{[1
]}

YOSHIKUNI, Y ^{[1
]}

KAWAGUCHI, H ^{[1
]}

机构：

[1] YAMAGATA UNIV, DEPT ELECT ENGN, YONEZAWA, YAMAGATA 992, JAPAN

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 1991年 / 27卷 / 02期

关键词：

D O I：

10.1109/3.78220

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 new, all-optical, stable, external feedback method, the incoherent optical negative feedback method, is proposed and demonstrated for spectral linewidth reduction and optical-frequency stabilization of distributed feedback (DFB) lasers. The power-spectral density of frequency modulation (FM) noise is shown to be reduced in a wide range up to several hundreds of megahertz. The spectral linewidth and the optical-frequency drift are simultaneously experimentally reduced to about 140 KHz and less than 11 MHz, respectively. The maximum reduction ratio of the power-spectral density of FM noise is about 22 dB.

引用

页码：193 / 204

页数：12

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