Influence of aberrations of receiver antenna on heterodyne efficiency in free-space optical communications based on heterodyne detection

Author

Yang, Qingbo ; Tan, Liying ; Ma, Jing

Author_Institution

Nat. Key Lab. of Tunable Laser Technol., Harbin Inst. of Technol., Harbin, China

fYear

2011

fDate

17-19 Aug. 2011

Firstpage

776

Lastpage

779

Abstract

Heterodyne efficiency in free-space optical communications based on heterodyne detection is degraded by the aberrations of the optics antenna used for reception of optical beams. The evolution of heterodyne efficiency with the change of rms of primary aberrations is investigated. It is shown that heterodyne efficiency decreases gradually with increasing primary aberrations. The comparison shows that different aberration types have variant influence on heterodyne efficiency. In addition, obscuration ratio of receiver antenna has a noticeable but relatively minor influence on heterodyne efficiency. We hope this work can benefit system design of heterodyne receiver in free-space coherent communications.

Keywords

aberrations; heterodyne detection; optical communication equipment; receiving antennas; free-space coherent communication; free-space optical communication; heterodyne detection; heterodyne efficiency; obscuration ratio; optical beam reception; optics antenna aberration; primary aberration rms; receiver antenna; Adaptive optics; Optical distortion; Optical fiber communication; Optical mixing; Optical receivers; Receiving antennas; Heterodyne efficiency; free-space optical communication; primary aberration;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China (CHINACOM), 2011 6th International ICST Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4577-0100-9

Type

conf

DOI

10.1109/ChinaCom.2011.6158258

Filename

6158258