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

TL;DR

This paper investigates the stochastic resonance phenomenon in a modulated class A laser system by analyzing its deterministic and stochastic dynamics through the Lyapunov potential, revealing noise-enhanced responses.

Contribution

It introduces a detailed analysis of the stochastic response of a modulated class A laser using the nonequilibrium potential, highlighting stochastic resonance in this context.

Findings

Identification of stochastic resonance within specific parameter ranges

Quantification of the laser's response via amplification factor

Demonstration of the potential's role in understanding noise effects

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.