Low-noise and high-gain 1.58μm band Er3+-doped fibre amplifiers with cascade configurations

被引:13
作者
Ono, H [1 ]
Yamada, M [1 ]
Kanamori, T [1 ]
Ohishi, Y [1 ]
机构
[1] NTT Corp, Optoelect Labs, Tokai, Ibaraki 31911, Japan
关键词
fibre amplifiers;
D O I
10.1049/el:19970957
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
The authors constructed two low-noise and high-gain 1.58 mu m band Er3+-doped fibre amplifiers (EDFAs) with cascade configurations. One consisted of 0.98 and 1.48 mu m band pumped silica-based Er3+-doped fibre amplifier units as first and second units, exhibiting a noise figure of 5.0dB and a signal gain of 32.8dB for a 1.58 mu m band WDM signal. The other employed a fluoride-based Er3+-doped fibre amplifier unit as a second unit and exhibited a noise figure of 5.1 dB and a signal gain of 25.0dB. Both EDFAs had low-noise and high-gain characteristics.
引用
收藏
页码:1477 / 1479
页数:3
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