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Proceedings Paper

Research on optimum local oscillator laser power of the space coherent laser communication
Author(s): Yang Zheng; Jianping Zheng; Shoufeng Tong; Huilin Jiang; Wenjun He
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Paper Abstract

The space coherent laser communication is a very potential and attractive mean as it allows higher speed communication between satellites. The space coherent laser communication makes use of local oscillator laser power to improve the power of received optical signal by mixing local oscillator laser and optical signal together. However, the power of the local laser oscillator can not be increased infinitely, too large but reduces the detection sensitivity. In this paper, starting from the principle of the signal-to-noise ratio of the space coherent laser communication, we found the optimum local oscillator laser power was 28.174mw, under the condition of the selected photodetector specific parameters. It is a great significant for high detection sensitivity and low data error of the actual coherent detection system.

Paper Details

Date Published: 21 August 2013
PDF: 4 pages
Proc. SPIE 8906, International Symposium on Photoelectronic Detection and Imaging 2013: Laser Communication Technologies and Systems, 89060H (21 August 2013); doi: 10.1117/12.2032236
Show Author Affiliations
Yang Zheng, Changchun Univ. of Science and Technology (China)
Jianping Zheng, Changchun Univ. of Science and Technology (China)
Shoufeng Tong, ChangChun Univ. of Science and Technology (China)
Huilin Jiang, Changchun Univ. of Science and Technology (China)
Wenjun He, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8906:
International Symposium on Photoelectronic Detection and Imaging 2013: Laser Communication Technologies and Systems
Keith E. Wilson; Jing Ma; Liren Liu; Huilin Jiang; Xizheng Ke, Editor(s)

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