IMPROVEMENT OF GAIN FLATNESS OF OPTICAL FLUORIDE FIBER AMPLIFIERS FOR MULTIWAVELENGTH TRANSMISSION

被引：21

作者：

SEMENKOFF, M ^{[1
]}

GUIBERT, M ^{[1
]}

RONARCH, D ^{[1
]}

SOREL, Y ^{[1
]}

KERDILES, JF ^{[1
]}

机构：

[1] FRANCE TELECOM,CNET LAB,EST,RIO,F-22301 LANNION,FRANCE

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1995年 / 184卷

关键词：

D O I：

10.1016/0022-3093(94)00618-0

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new type of optical fiber amplifier well suited for multiwavelength long-distance transmission systems is presented. In such applications, optical amplifiers must provide equal gain and noise for each wavelength. Usually in fluoride fiber-based amplifiers a gain decrease for the shortest transmitted wavelengths is observed. This gain decrease is enhanced when such amplifiers are cascaded. A fiber amplifier made of butt-jointed silica and fluoride erbium-doped fibers was studied. The influence of the erbium-doped silica fiber on the amplified spontaneous emission spectrum of this 'hybrid' amplifier was observed. This new amplifier has been cascaded with a fluoride fiber amplifier in a multiwavelength transmission system (with wavelengths ranging from 1533 to 1557 nm). Various optical spectra at the output of the amplifiers are presented and compared with standard fluoride fiber amplifiers.

引用

页码：240 / 243

页数：4

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