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Field Conjugation Adaptive Arrays in Free-Space Coherent Laser Communications |
Journal of Optical Communications and Networking, Vol. 3, Issue 11, pp. 830-838 (2011)
http://dx.doi.org/10.1364/JOCN.3.000830
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Abstract
We analyze the performance of adaptive field conjugation array receivers in coherent laser communications through the turbulent atmosphere. We consider coherent fiber arrays consisting of densely packed multiple subapertures, with each subaperture interfaced to a single-mode fiber. In a field conjugation fiber array, the single-mode fiber outputs are detected, and the photocurrents are adaptively co-phased and scaled, and then summed to mitigate signal fading associated with atmospheric turbulence and compensate for imperfect fiber coupling efficiency. We quantify how field conjugation processing improves performance in the presence of turbulence, as compared to a monolithic-aperture coherent receiver having an equal total cross-sectional area.
© 2011 OSA
OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(060.4510) Fiber optics and optical communications : Optical communications
ToC Category:
Research Papers
History
Original Manuscript: July 20, 2011
Revised Manuscript: September 20, 2011
Manuscript Accepted: September 20, 2011
Published: October 14, 2011
Citation
Aniceto Belmonte and Joseph M. Kahn, "Field Conjugation Adaptive Arrays in Free-Space Coherent Laser Communications," J. Opt. Commun. Netw. 3, 830-838 (2011)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-3-11-830
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