High-performance and wideband amplifier using bismuth-oxide-based EDF with cascade configurations

被引:29
|
作者
Hayashi, Hideaki [1 ]
Sugimoto, Naoki
Tanabe, Setsuhisa
机构
[1] Asahi Glass Co Ltd, Res Ctr, Yokohama, Kanagawa 2218755, Japan
[2] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan
关键词
erbium-doped fiber; bismuth-oxide-based fiber; multi-stage amplifier; amplified spontaneous emission; extended-L band; coarse wavelength division multiplexing;
D O I
10.1016/j.yofte.2005.11.005
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
We demonstrate high-performance and wideband-bismuth-oxide-based erbiurn-doped fiber amplifiers (BI-EDFAs) with multi-stage configurations. Cascade configurations that gain flattening filters and isolators inserted between the doped fibers are applied in order to suppress amplified spontaneous emission (ASE). As a result of the optimization of the fiber length, the gain characteristics of the two-stage BI-EDFAs were improved in extended L-band region. The BI-EDFAs for four-channel coarse wavelength division multiplexing (CWDM) systems ranging from 1550-1610 mn are then presented. Three-stage configurations are applied, and a gain of 20 dB and an output power of 20 dB m are simultaneously achieved with practical pumping condition. (C) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:282 / 287
页数:6
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