Experimental comparison of tracking algorithms in the presence of aircraft boundary-layer distortions for emulated free-space laser communication links
Applied Optics, Vol. 48, Issue 1, pp. A98-A106 (2009)
http://dx.doi.org/10.1364/AO.48.000A98
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Abstract
We report experiments comparing different focal plane array (FPA) tracking algorithms for emulated laser communication links between an aircraft and spacecraft. The links include look-angle-dependent phase disturbances caused by boundary-layer turbulence replicated by using a deformable mirror. Impairments from platform jitter, atmospheric scintillation, and propagation delay are also included. We study a hyperhemispherical dome geometry that provides a large field of regard but generates boundary-layer turbulence. Results from experiments comparing peak and centroid FPA tracking algorithms in various environments show that power delivered to the optical fiber varies with algorithm and look angle. An improvement in steady-state fiber-coupled power of up to
© 2009 Optical Society of America
OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(060.2605) Fiber optics and optical communications : Free-space optical communication
History
Original Manuscript: September 4, 2008
Revised Manuscript: November 17, 2008
Manuscript Accepted: November 18, 2008
Published: December 24, 2008
Citation
Ross A. Conrad, Robert J. Murphy, Timothy H. Williams, William E. Wilcox, Steven Michael, and Jeffrey M. Roth, "Experimental comparison of tracking algorithms in the presence of aircraft boundary-layer distortions for emulated free-space laser communication links," Appl. Opt. 48, A98-A106 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-1-A98
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