Effects of correlated noises in a saturation laser model

摘要

The effects of correlations between additive and multiplicative noises in a saturation laser model axe investigated. The approximative Fokker-Planck equation and analytic expressions of the steady-state probability distribution function (SPD) of the laser system are derived. Based on the SPD, the normalized mean, the normalized variance, and the normalized skewness of the steady-state laser intensity are calculated numerically. Our results indicate that: (i) For the laser being operated above threshold, the correlation strength lambda reduces the intensity fluctuation; (ii) For the laser being operated near threshold and below threshold, the correlation strength lambda enhances the intensity fluctuation.