Stochastic Resonance in Linear Region of a Single-Mode Laser: Effects of Amplitude Modulation of Signal

二次的有颜色的泵噪音和振幅调整信号驾驶的一个单个模式的激光噪音模型被建议。泵噪音的真实、想象的部分被假定跨关联。效果噪音和激光上的信号的振幅调整跨关联统计性质被使用线性化的近似学习。signal-to-noise 比率(SNR ) 的分析表示是计算的。随机的回声(SR ) 的现象分别地在 SNR 对噪音的曲线存在，这被发现跨关联的系数 λ 和 SNR 对泵参数一，以及在我们的模型的 SNR 对信号频率。有在模型的 SR 的三不同 typies，这被显示出：SR，在宽广意义的 SR，和真正的 SR 的常规形式。

A single-mode laser noise model driven by quadratic colored pump noise and amplitude modulation signal is proposed. The real and imaginary parts of the pump noise are assumed to be cross-correlation. The effect of cross- correlation of noise and amplitude modulation of signal on laser statistical properties is studied by using the linearized approximation. The analytic expression of signal-to-noise ratio （SNR） is calculated. It is found that the phenomena of stochastic resonance （SR） respectively exist in the curves of the SNR versus the noise cross-correlation coefficient λ and the SNR versus the pump parameter a, as well as the SNR versus the signal frequency ω in our model. It is shown that there are three different typies of SR in the model： the conventional form of SR, the SR in the broad sense, and the bona fide SR.