Circle Polarization Shift Keying With Direct Detection for Free-Space Optical Communication
Journal of Optical Communications and Networking, Vol. 1, Issue 4, pp. 307-312 (2009)
http://dx.doi.org/10.1364/JOCN.1.000307
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Abstract
A binary polarization shift-keying scheme with two circle polarization states, circle polarization shift keying (CPolSK), is proposed and discussed. The propagation of the circle-polarized Gaussian Schell model beam is studied based on the cross-spectral density matrix. The results show that the state of polarization remains unchanged and the degree of polarization slightly increases upon propagation in a turbulent atmosphere. The analysis of the bit-error-rate performance shows that the CPolSK system has about a 3 dB lower requirement in signal-to-noise ratio than the on-off keying system. The modulation scheme will be helpful for practical free-space optical communication systems in the future.
© 2009 Optical Society of America
OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(060.4080) Fiber optics and optical communications : Modulation
(060.2605) Fiber optics and optical communications : Free-space optical communication
ToC Category:
Regular Papers
History
Original Manuscript: March 26, 2009
Revised Manuscript: July 22, 2009
Manuscript Accepted: July 23, 2009
Published: August 20, 2009
Citation
Xinhui Zhao, Yong Yao, Yunxu Sun, and Chao Liu, "Circle Polarization Shift Keying With Direct Detection for Free-Space Optical Communication," J. Opt. Commun. Netw. 1, 307-312 (2009)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-1-4-307
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