Experimental study on noise characteristics of a gain-saturated fiber optical parametric amplifier

被引：56

作者：

Inoue, K ^{[1
]}

Mukai, T ^{[1
]}

机构：

[1] NTT Corp, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2002年 / 20卷 / 06期

关键词：

optical fibers; optical noise; optical parametric amplifiers (OPAs);

D O I：

10.1109/JLT.2002.1018808

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 fiber optical parametric amplifier (OPA) has a unique saturation property such that, with increase in signal input, the signal output power increases, reaches a peak. level, then decreases. Around the output peak condition, a negative feedback mechanism works to suppress intensity fluctuations in the signal output. This paper experimentally studies noise characteristics of such a gain-saturated fiber OPA. Two kinds of incident signals are injected into a fiber OPA. One is intentionally fluctuated light with large excess noise and the other is excess-noise-free (or shot-noise-limited) light. It is demonstrated that the noise suppression has an effect both on the excess noise and on beat noise due to amplified spontaneous emission generated inside the amplifier.

引用

页码：969 / 974

页数：6

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