GAIN-CONTROL IN ERBIUM-DOPED FIBER AMPLIFIERS BY AN ALL-OPTICAL FEEDBACK LOOP

被引：179
|
作者：
ZIRNGIBL, M
机构：
[1] AT&T Bell Laboratories, Crawford Hill Laboratory, Holmdel
来源：
ELECTRONICS LETTERS | 1991年 / 27卷 / 07期
关键词：
AMPLIFIERS; OPTICAL FIBERS;
D O I：
10.1049/el:19910353
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：
An all-optical feedback loop is demonstrated which effectively suppresses slow, signal-induced gain fluctuations in Erdoped fibre amplifers (EDFAs). Gain control is achieved by operating the amplifier in a ring-laser configuration. The working principle is shown theoretically and experimentally by coupling a selected wavelength of the ASE at the output of the EDFA back to the input. Such a feedback loop, which can be fabricated out of all-fibre passive components, could be easily implemented in any system using EDFAs.
引用
收藏
页码：560 / 561
页数：2
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