
Proceedings Paper
A nonlinear OPC technique for laser beam control in turbulent atmosphereFormat | Member Price | Non-Member Price |
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Paper Abstract
A viable beam control technique is critical for effective laser beam transmission through turbulent atmosphere. Most
of the established approaches require information on the impact of perturbations on wavefront propagated waves.
Such information can be acquired by measuring the characteristics of the target-scattered light arriving from a small,
preferably diffraction-limited, beacon. This paper discusses an innovative beam control approach that can support
formation of a tight laser beacon in deep turbulence conditions. The technique employs Brillouin enhanced fourwave
mixing (BEFWM) to generate a localized beacon spot on a remote image-resolved target. Formation of the
tight beacon doesn’t require a wavefront sensor, AO system, or predictive feedback algorithm. Unlike conventional
adaptive optics methods which allow wavefront conjugation, the proposed total field conjugation technique is
critical for beam control in the presence of strong turbulence and can be achieved by using this non-linear BEFWM
technique. The phase information retrieved from the established beacon beam can then be used in conjunction with
an AO system to propagate laser beams in deep turbulence.
Paper Details
Date Published: 17 May 2013
PDF: 10 pages
Proc. SPIE 8732, Atmospheric Propagation X, 87320D (17 May 2013); doi: 10.1117/12.2016255
Published in SPIE Proceedings Vol. 8732:
Atmospheric Propagation X
Linda M. Wasiczko Thomas; Earl J. Spillar, Editor(s)
PDF: 10 pages
Proc. SPIE 8732, Atmospheric Propagation X, 87320D (17 May 2013); doi: 10.1117/12.2016255
Show Author Affiliations
V. Markov, Advanced Systems & Technologies, Inc. (United States)
A. Khizhnyak, Advanced Systems & Technologies, Inc. (United States)
P. Sprangle, U.S. Naval Research Lab. (United States)
Univ. of Maryland, College Park (United States)
A. Khizhnyak, Advanced Systems & Technologies, Inc. (United States)
P. Sprangle, U.S. Naval Research Lab. (United States)
Univ. of Maryland, College Park (United States)
A. Ting, U.S. Naval Research Lab. (United States)
L. DeSandre, Office of Naval Research (United States)
B. Hafizi, U.S. Naval Research Lab. (United States)
L. DeSandre, Office of Naval Research (United States)
B. Hafizi, U.S. Naval Research Lab. (United States)
Published in SPIE Proceedings Vol. 8732:
Atmospheric Propagation X
Linda M. Wasiczko Thomas; Earl J. Spillar, Editor(s)
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