GAIN-DISTRIBUTION MEASUREMENTS ALONG AN ULTRALONG ERBIUM-DOPED FIBER AMPLIFIER USING OPTICAL-TIME-DOMAIN REFLECTOMETRY

被引：8

作者：

NAKAZAWA, M

KIMURA, Y

SUZUKI, K

机构：

[1] Lightwave Communication Laboratory, NTT Transmission Systems Laboratories, Tokai, Ibaraki-ken

来源：

OPTICS LETTERS | 1990年 / 15卷 / 21期

关键词：

D O I：

10.1364/OL.15.001200

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical gain changes as a function of distance along a long distributed erbium-doped fiber amplifier were measured, using optical-time-domain reflectometry. Two dispersion-shifted erbium-doped fibers with fiber lengths of 9–19 km and doping concentrations of 0.5 (0.5 × 10−4 wt %) and 0.1 (0.1 × 10−4 wt %) parts in 106 have been tested, using 1.48-μm InGaAsP laser diode and 0.98-μm Ti:sapphire laser pump sources. It is shown how local gain and loss change with an increase in pump power. © 1990 Optical Society of America.

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页码：1200 / 1202

页数：3

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