The Stochastic Resonance of the Single-mode Laser with the Color Noises Correlation Period Modulation and Signal Modulation

摘要

The stochastic resonance of the laser systems which the color noise correlation intensity is modulated by the time period and the noise is modulated by the signal is investigated. By means of the linear approximation method, we calculate the signal-noise ratio of the laser intensity. We discuss the influence of the noise to the evolution of the signal-noise ratio with the noise self-correlation time, and discuss the influence of the signal modulation frequency to the evolution of the signal-noise ratio with the pump noise self-correlation time. It is found that the quantum noise and pump noise present different influence, the influence of the signal modulation frequency is interrelated with the time period modulation frequency.