ERBIUM-DOPED FIBER AMPLIFIER PUMPED AT 1.48 MU-M WITH EXTREMELY HIGH-EFFICIENCY

被引：27

作者：

KASHIWADA, T

SHIGEMATSU, M

KOUGO, T

KANAMORI, H

NISHIMURA, M

机构：

[1] Yokohama Laboratories, Sumitomo Electric Industries, Ltd, Yokohama

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1991年 / 3卷 / 08期

关键词：

D O I：

10.1109/68.84464

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：

An erbium-doped fiber amplifier pumped at 1.48-mu-m with ultimately high efficiency has been developed. The fiber has a relative refractive index difference of 2.0% and Er3+ ions and alumina are doped only in a limited area of the core. A slope efficiency of 86% and a gain coefficient of 6.3 dB/mW by 1.48-mu-m pumping have been achieved as well as excellent spectral signal output performance. In spite of its small mode-field diameter, it is possible to fusion-splice the fiber to standard dispersion-shifted fibers with low loss due to diffusion of fluorine dopant in the cladding.

引用

页码：721 / 723

页数：3

共 7 条

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