Coherent receiving efficiency in satellite-ground coherent laser communication system based on analysis of polarization

被引：2

作者：

Hao, Shiqi ^{[1
]}

Zhang, Dai ^{[1
]}

Zhao, Qingsong ^{[1
]}

Wang, Lei ^{[1
]}

Zhao, Qi ^{[1
]}

机构：

[1] Elect Engn Inst, State Key Lab Pulsed Power Laser Technol, Hefei 230037, Anhui, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2017年 / 393卷

基金：

中国国家自然科学基金;

关键词：

Laser communication system; Gaussian-Schell model; Polarization; Coherence; Receiving efficiency; ATMOSPHERIC-TURBULENCE; ELECTROMAGNETIC BEAMS; OPTICAL COMMUNICATION; GAUSSIAN-BEAM; GENERATION;

D O I：

10.1016/j.optcom.2017.02.061

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Aimed at analyzing the coherent receiving efficiency of a satellite-ground coherent laser communication system, polarization state of the received light is analyzed. We choose the circularly polarized, partially coherent laser as transmitted light source. The analysis process includes 3 parts. Firstly, an theoretical model to analyze received light's polarization state is constructed based on Gaussian-Schell model (GSM) and cross spectral density function matrix. Then, analytic formulas to calculate coherent receiving efficiency are derived in which both initial ellipticity modification and deflection angle between polarization axes of the received light and the intrinsic light are considered. At last, numerical simulations are operated based on our study. The research findings investigate variations of polarization state and obtain analytic formulas to calculate the coherent receiving efficiency. Our study has theoretical guiding significances in construction and optimization of satellite ground coherent laser communication system.

引用

页码：267 / 274

页数：8

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