Influence of phase-diffuser dynamics on scintillations of laser radiation in Earth's atmosphere: Long-distance propagation

Influence of phase-diffuser dynamics on scintillations of laser radiation in Earth’s atmosphere: Long-distance propagation

G. P. Berman and A. A. Chumak

Phys. Rev. A 79, 063848 – Published 30 June 2009

Abstract

The effect of a random-phase diffuser on fluctuations of laser light (scintillations) is studied. Not only spatial but also temporal phase variations introduced by the phase diffuser are analyzed. The explicit dependence of the scintillation index on finite-time phase variations is obtained for long propagation paths. It is shown that for large amplitudes of phase fluctuations, a finite-time effect decreases the ability of phase diffuser to suppress the scintillations.

Received 25 March 2009

DOI:https://doi.org/10.1103/PhysRevA.79.063848

Authors & Affiliations

G. P. Berman^1,* and A. A. Chumak^1,2

¹Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
²Institute of Physics, National Academy of Sciences, Pr. Nauki 46, Kiev-28, MSP 03028, Ukraine

^*Corresponding author. gpb@lanl.gov

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Vol. 79, Iss. 6 — June 2009

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