Performance analysis of fiber-based free-space optical communications with coherent detection spatial diversity

被引：35

作者：

Li, Kangning ^{[1
,2
]}

Ma, Jing ^{[1
,2
]}

Tan, Liying ^{[1
,2
]}

Yu, Siyuan ^{[1
,2
]}

Zhai, Chao ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Free Space Opt Commun Technol Res Ctr, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Peoples R China

来源：

APPLIED OPTICS | 2016年 / 55卷 / 17期

关键词：

ATMOSPHERIC-TURBULENCE CHANNELS; ERROR RATE ANALYSIS; COUPLING EFFICIENCY; EQUAL-GAIN; RECEIVER; SYSTEMS; LIGHT; MODEL;

D O I：

10.1364/AO.55.004649

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The performances of fiber-based free-space optical (FSO) communications over gamma-gamma distributed turbulence are studied for multiple aperture receiver systems. The equal gain combining (EGC) technique is considered as a practical scheme to mitigate the atmospheric turbulence. Bit error rate (BER) performances for binary-phase-shift-keying-modulated coherent detection fiber-based free-space optical communications are derived and analyzed for EGC diversity receptions through an approximation method. To show the net diversity gain of a multiple aperture receiver system, BER performances of EGC are compared with a single monolithic aperture receiver system with the same total aperture area (same average total incident optical power on the aperture surface) for fiber-based free-space optical communications. The analytical results are verified by Monte Carlo simulations. System performances are also compared for EGC diversity coherent FSO communications with or without considering fiber-coupling efficiencies. (C) 2016 Optical Society of America

引用

页码：4649 / 4656

页数：8

共 32 条

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