MEASUREMENT OF PUMP INDUCED REFRACTIVE-INDEX CHANGE IN ERBIUM DOPED FIBER AMPLIFIER

被引：53

作者：

FLEMING, SC ^{[1
]}

WHITLEY, TJ ^{[1
]}

机构：

[1] UNIV LEEDS,DEPT ELECT ENGN,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND

来源：

ELECTRONICS LETTERS | 1991年 / 27卷 / 21期

关键词：

OPTICAL FIBERS; AMPLIFIERS; REFRACTIVE INDEX PROFILES;

D O I：

10.1049/el:19911215

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：

What the authors believe to be the first spectral measurements of pump induced refractive index change in the erbium doped fibre amplifier (EDFA) are reported. The measurements were performed using a 980 nm pumped EDFA configured within a quadrature locked interferometer. A maximum pumped/unpumped change in refractive index of 5.5 x 10(-8) per dB of absorption at 1.536-mu-m was measured. The spectral dependence of the refractive index associated with the 4I13/2-4I15/2 resonance transition was calculated by application of the Kramers-Kronig relations to the change in transmission data and was shown to be consistent with the experimentally measured data. The dispersion associated with the pumped index change was also calculated and systems implications are considered.

引用

页码：1959 / 1961

页数：3