Performance of synchronous optical receivers using atmospheric compensation techniques

被引：109

作者：

Belmonte, Aniceto ^{[1
,2
]}

Kahn, Joseph M. ^{[2
]}

机构：

[1] Tech Univ Catalonia, Dept Signal Theory & Commun, Barcelona 08034, Spain

[2] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 18期

关键词：

D O I：

10.1364/OE.16.014151

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We model the impact of atmospheric turbulence-induced phase and amplitude fluctuations on free-space optical links using synchronous detection. We derive exact expressions for the probability density function of the signal-to-noise ratio in the presence of turbulence. We consider the effects of log-normal amplitude fluctuations and Gaussian phase fluctuations, in addition to local oscillator shot noise, for both passive receivers and those employing active modal compensation of wave-front phase distortion. We compute error probabilities for M-ary phase-shift keying, and evaluate the impact of various parameters, including the ratio of receiver aperture diameter to the wave-front coherence diameter, and the number of modes compensated. (C) 2008 Optical Society of America.

引用

页码：14151 / 14162

页数：12

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