NOISE MEASUREMENTS ON DISTRIBUTED-FEEDBACK OPTICAL AMPLIFIERS USED AS TUNABLE ACTIVE-FILTERS

被引：5

作者：

GOLDSTEIN, EL ^{[1
]}

TEICH, MC ^{[1
]}

机构：

[1] COLUMBIA UNIV,DEPT ELECTR ENGN,CTR TELECOMMUN,NEW YORK,NY 10027

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1991年 / 3卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/68.68043

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：

Resonant, single-mode optical amplifiers have shown promise for use as fast, tunable filters in multiwavelength communications networks; however, their noise properties have received little attention. According to recent theoretical predictions, the photocurrent signal-to-noise ratio at the output of such a filter should exhibit a simple dependence on both the mean amplified-signal power and the mean amplified-spontaneous-emission power. We have confirmed this prediction via direct measurement of the photocurrent signal-to-noise ratio at the output of a 1.5-mu-m distributed-feedback amplifier biased slightly below its lasing threshold.

引用

页码：45 / 46

页数：2

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