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
来源：
OPTICS COMMUNICATIONS | 1992年 / 91卷 / 1-2期
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.
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页码：41 / 45
页数：5
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