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3 October 2014 Advanced TIL system for laser beam focusing in a turbulent regime
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This paper discusses an advanced target in the loop (ATIL) system with its performance based on a nonlinear phase conjugation scheme that performs rapid adjustment of the laser beam wavefront to mitigate effects associated with atmospheric turbulence along the propagation path. The ATIL method allows positional control of the laser spot (the beacon) on a remote imaged-resolved target. The size of this beacon is governed by the reciprocity of two counterpropagating beams (one towards the target and another scattered by the target) and the fidelity of the phase conjugation scheme. In this presentation we will present the results of the thorough analysis of ATIL operation, factors that affect its performance, its focusing efficiency and the comparison of laboratory experimental validation and computer simulation results.
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Phillip A. Sprangle, Antonio C. Ting, Dmitry Kaganovich, Anatoliy I. Khizhnyak, Ivan V. Tomov, Vladimir B. Markov, and Dmitriy V. Korobkin "Advanced TIL system for laser beam focusing in a turbulent regime", Proc. SPIE 9224, Laser Communication and Propagation through the Atmosphere and Oceans III, 92240H (3 October 2014);

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