The effects of phase diffuser on scintillations of laser radiation for long-distance propagation in the atmosphere

G. P. Berman; A. R. Bishop; B. M. Chernobrod; O. O. Chumak; V. N. Gorshkov; S. V. Torous

doi:10.1117/12.840721

26 February 2010 The effects of phase diffuser on scintillations of laser radiation for long-distance propagation in the atmosphere

G. P. Berman, A. R. Bishop, B. M. Chernobrod, O. O. Chumak, V. N. Gorshkov, S. V. Torous

Author Affiliations +

Proceedings Volume 7588, Atmospheric and Oceanic Propagation of Electromagnetic Waves IV; 758804 (2010) https://doi.org/10.1117/12.840721
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

We consider theoretically and numerically the suppression of fluctuations (scintillations) of a laser beam propagating through turbulent atmospheres by applying a phase modulator. Both spatial and temporal phase variations introduced by this phase modulator are analyzed. The explicit dependences of the scintillation index on the initial correlation length and finite-time phase variations for long propagation paths are obtained. Results of modeling and numerical simulations are presented. We demonstrate that an appropriately chosen phase modulator can significantly suppress the scintillations of the laser beam caused by turbulent atmospheres.

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G. P. Berman, A. R. Bishop, B. M. Chernobrod, O. O. Chumak, V. N. Gorshkov, and S. V. Torous "The effects of phase diffuser on scintillations of laser radiation for long-distance propagation in the atmosphere", Proc. SPIE 7588, Atmospheric and Oceanic Propagation of Electromagnetic Waves IV, 758804 (26 February 2010); https://doi.org/10.1117/12.840721

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