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Proceedings Paper

High data-rate differential phase shift keying receiver for satellite-to-ground optical communication link
Author(s): Yan'an Zhi; Jianfeng Sun; Enwen Dai; Yu Zhou; Lijuan Wang; Wei Lu; Peipei Hou; Liren Liu
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Paper Abstract

The high data-rate satellite-to-ground coherent optical communication link is limited because the phase integrity of a beam is impaired when passing through the atmospheric turbulence. Based on the interference of two successive data bits in an unequal arm-length Mach-Zehnder delay interferometer, the differential phase shift keying receiver is suited for high data-rate satellite-to-ground coherent optical communication links due to its immunity of the wave front impairment when passing through the atmospheric turbulence. In the time-delay self-homodyne interferometric detection used in 2×4 90 degree optical hybrid, the optical path difference corresponds to the duration of one bit. The optical path difference is stabilized to below one thousandth of the wavelength by moving a finely motorized platform with the close-loop control using the phase feedback from the outputs of the 90 degree hybrid. The 2.5 Gbps optical communication link has already been verified between two buildings over a distance of 2.4km in the worst-case atmospheric conditions. The design and experimental results are given in this paper.

Paper Details

Date Published: 24 October 2012
PDF: 10 pages
Proc. SPIE 8517, Laser Communication and Propagation through the Atmosphere and Oceans, 85170F (24 October 2012); doi: 10.1117/12.928391
Show Author Affiliations
Yan'an Zhi, Shanghai Institute of Optics and Fine Mechanics (China)
Jianfeng Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Enwen Dai, Shanghai Institute of Optics and Fine Mechanics (China)
Yu Zhou, Shanghai Institute of Optics and Fine Mechanics (China)
Lijuan Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Wei Lu, Shanghai Institute of Optics and Fine Mechanics (China)
Peipei Hou, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8517:
Laser Communication and Propagation through the Atmosphere and Oceans
Alexander M. J. van Eijk; Christopher C. Davis; Stephen M. Hammel; Arun K. Majumdar, Editor(s)

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