, Volume 77, Issue 6-7, pp 551-554
Date: 28 Oct 2003

Semilinear coherent oscillator with reflection-type photorefractive gratings

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Abstract

The saturation intensity, oscillation spectrum, and temporal dynamics of oscillation are studied for a semilinear coherent oscillator with two counterpropagating pump waves and a photorefractive crystal with dominating reflection gratings. The instability of the single-frequency oscillation spectrum is revealed, similar to that known for an oscillator with dominating transmission gratings. The experimental manifestation of this transition in the output characteristics of the oscillator is favourably compared with numerical calculations.

PACS

42.65.Hw; 05.45.-a; 42.65.Pc; 42.65.Sf