OUTPUT SATURATION IN A 980-NM PUMPED ERBIUM-DOPED FIBER AMPLIFIER

被引：33

作者：

QUIMBY, RS

机构：

[1] Worcester Polytechnic Institute, Physics Department, Worcester, MA

来源：

APPLIED OPTICS | 1991年 / 30卷 / 18期

关键词：

D O I：

10.1364/AO.30.002546

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A fiber amplifier model is developed which includes a finite lifetime for the pumped level. Pump excited state absorption (ESA) from the pumped level is also included. The model is solved numerically for a erbiumdoped fiber amplifier pumped at 980 nm. The signal output power at 1.5-mu-m is found to be limited by the finite lifetime of the 4I11/2; ESA of the pump from the 4I11/2 further limits the signal output. Lifetimes of the 4I11/2 were measured for Er3+ in a series of oxide and fluoride glasses. Output saturation is most important in the fluoride based glasses, where the 4I11/2 lifetime is longest.

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页码：2546 / 2552

页数：7

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