Eur. Phys. J. B (2018) 91: 114
https://doi.org/10.1140/epjb/e2018-90194-5

Regular Article

Modulated class A laser: stochastic resonance in a limit-cycle potential system

IFISC (Instituto de Física Interdisciplinar y Sistemas Complejos), Universitat de les Illes Balears-CSIC, 07122 Palma de Mallorca, Spain

^a e-mail: wio@ifca.unican.es

Received: 21 March 2018
Received in final form: 10 April 2018
Published online: 13 June 2018

Abstract

We exploit the knowledge of the nonequilibrium potential in a model for the modulated class A laser. We analyse both, the deterministic and the stochastic dynamics of such a system in terms of the Lyapunov potential. Furthermore, we analyse the stochastic response of such a system and explain it again using the potential in a wide range of parameters and for small values of the noise. Such a response is quantified by means of the amplification factor, founding stochastic resonance within specific parameter’s ranges.