单模激光线性模型初态的随机共振

Stochastic resonance of linear model of a single-mode laser in its initial state

根据线性化的单模激光输出光强方程 ,运用计算光强的相关函数 ,得到光强的功率谱及信噪比的方法 ,对δ函数形式关联的两白噪声驱动的单模激光线性模型瞬态随机共振进行了研究 ,具体计算了瞬态的第一个周期的功率谱及信噪比 ,发现在一定的条件下也可出现随机共振 。

According to the linearized equation of single-mode la ser, the correlated function of the laser intensity was calculated. The instanta neous-state stochastic resonance of the linear model of single-mode laser driv en by two white noise correlated in the form of aδfunction was studied. The fir st periodic power spectrum and signal-to noise rate of the instantaneous-state were calculated. The stochastic resonance under proper conditions was detected and it was compared with the steady-state stochastic resonance.