PERFORMANCE OF A LIGHTWAVE SYSTEM INCORPORATING A CASCADE OF ERBIUM-DOPED FIBER AMPLIFIERS

被引:13
|
作者
LI, T
TEICH, MC
机构
[1] Center for Telecommunication Research, Department of Electrical Engineering, Columbia University, New York
关键词
D O I
10.1016/0030-4018(92)90097-B
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The photon-number distribution (PND) at the output of a cascade of erbium-doped fiber amplifiers (EDFAs), with coherent light at the input, turns out to be the noncentral-negative-binomial (NNB) distribution, even in the presence of intervening loss, provided that the normalized bandwidth is the same for all amplifiers. The probability of error (PE) for a cascade of several high-gain EDFAs is essentially the same as that for a single EDFA. The performance of a sequence of postamplifiers is superior to that of a sequence of preamplifiers.
引用
收藏
页码:41 / 45
页数:5
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