Technical Physics

Generalized derivation of equations for four-wave interaction in photorefractive media

V. Yu. Petrun’kin, Ivan V. Murashko, Elena V. Mokrushina

Published Aug 1, 2006• 0 citations

Abstract

The emergence of optical waves out of optical noise (fanning) in a photorefractive medium is considered in an unconventional manner, i.e., using the Lorentz lemma and ensemble averaging. The derivation of equations for four-wave interaction in the scheme of a double incoherent phase-conjugate mirror is described in detail. Numerical calculation based on the resulting system of equations provides insight into the effect of noise on the oscillation threshold and makes it possible to discover the “higher threshold” effect in saturation-free noisy materials.

DOI: 10.1134/s1063784206080147

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