Amplified spontaneous emission and Rayleigh backscattering in strongly pumped fiber amplifiers

被引：32

作者：

Hardy, AA ^{[1
]}

Oron, R ^{[1
]}

机构：

[1] Tel Aviv Univ, Dept Elect Engn, IL-69978 Tel Aviv, Israel

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1998年 / 16卷 / 10期

关键词：

laser amplifiers; optical fiber amplifiers; optical fiber cladding; Rayleigh scattering; spontaneous emission;

D O I：

10.1109/50.721074

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：

Amplified spontaneous emission (ASE) and Rayleigh backscattering (RBS) in strongly pumped fiber amplifiers are studied, employing a rate equation model. Approximate expressions for the ASE and RES, as well as for the amplifier noise figure are derived, based on approximate analytical expressions for the amplified signal, which are valid for both three-level and four-level systems. Numerical examples for rare-earth-doped fibers, show good agreement between these approximate expressions and the exact numerical solutions for strong pumping and for injected signals which are not too weak.

引用

页码：1865 / 1873

页数：9

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