This article is cited in 1 paper

Lasers

Synchronisation and desynchronisation of self-modulation oscillations in a ring chip laser under the action of a periodic signal and noise

V. Yu. Dudetskii^a, E. G. Lariontsev^b, S. N. Chekina<sup>b

a</sup> M. V. Lomonosov Moscow State University, Faculty of Physics
^b Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University

Abstract: The effect of pump noise on the synchronisation of selfmodulation oscillations in a solid-state ring laser with periodic pump modulation is studied numerically and experimentally. It is found that, in contrast to desynchronisation that usually occurs under action of noise in the case of 1/1 synchronisation of self-oscillations by a periodic signal, the effect of noise on 1/2 synchronisation may be positive, namely, at a sufficiently low intensity, pump noise is favourable for synchronisation of self-oscillations, for narrowing of their spectrum, and for increasing the signal-to-noise ratio.

Keywords: solid-state ring laser, self-modulation oscillation regime, 1/2 synchronisation, bistability, stochastic resonance, desynchronisation.

PACS: 42.55.Rz, 42.60.Da, 42.60.Mi, 42.65.Sf

Received: 04.02.2014
Revised: 14.03.2014

 English version: Quantum Electronics, 2014, 44:9, 806–809

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