Low-noise operation of fluoride-based erbium-doped fiber amplifiers with I-4(11/2)-level pumping

被引：18
|
作者：
Ohishi, Y [1 ]
Yamada, M [1 ]
Kanamori, T [1 ]
Sudo, S [1 ]
Shimizu, M [1 ]
机构：
[1] NTT ELECT TECHNOL CORP, TOKAI, IBARAKI 31911, JAPAN
来源：
OPTICS LETTERS | 1997年 / 22卷 / 16期
关键词：
D O I：
10.1364/OL.22.001235
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The low-noise operation of fluoride-based erbium-doped fiber amplifiers (EDFA's) is demonstrated with I-4(11/2)- level pumping for what we believe to be the first time. A noise figure as low as 3.5 +/- 0.5 dB at 1550 nm is achieved by means of 970-nm pumping. It is shown that it is possible to construct fluoride-based EDFA's with a noise figure as low as that of silica-based EDFA's. (C) 1997 Optical Society of America.
引用
收藏
页码：1235 / 1237
页数：3
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