由信号调制的饱和激光模型随机共振现象

Stochastic Resonance in the Saturation Laser Model Modulated by Signal

用线性化近似方法研究了具有δ形式关联的高斯白噪声驱动的饱和激光模型系统受信号调制后的输出功率谱和信噪比,结果表明信噪比随量子噪声强度、泵噪声强度变化产生随机共振,分析了输入信号的振幅、频率、噪声关联强度对信噪比的影响。

By means of the linear approximation, we investigate the out-put power spectrum and singal to-noi se ratio for the signal modulated model of the saturation laser model system driven by GAUSS white noise with 5 correlated. Results show that the signal-to-noise ration causes stochastic resonance with the changes of the intensities of the pump and quantum noise. The amplitude of the input signal, frequency, noise correlation strength were studied to find their influenceson stochastic resonance.