一级近似下的单模激光增益模型随机共振

物理学报

一级近似下的单模激光增益模型随机共振

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张良英, 金国祥, 曹力. 2012: 一级近似下的单模激光增益模型随机共振, 物理学报, 61(7): 210-215.

引用本文:

张良英, 金国祥, 曹力. 2012: 一级近似下的单模激光增益模型随机共振, 物理学报, 61(7): 210-215.

2012: Stochastic resonance in a gain-noise model of single-mode laser under the first-order approximation, Acta Physica Sinica, 61(7): 210-215.

Citation:

2012: Stochastic resonance in a gain-noise model of single-mode laser under the first-order approximation, Acta Physica Sinica, 61(7): 210-215.

Stochastic resonance in a gain-noise model of single-mode laser under the first-order approximation

摘要: 把周期信号输入单模激光,对激光增益模型中的乘法噪声项取一级近似通过计算相关函数得到功率谱,发现输出信号是洛伦兹型的.信噪比随抽运噪声强度和量子噪声强度的变化均出现随机共振,但共振峰对应的噪声强度比零级近似下的小.
- 乘法噪声 /
- 相关函数 /
- 随机共振
Abstract: By adding periodic signal into single-mode laser,and taking the first-order approximation to the multiplication noise of the laser gain-noise model,we find that the output signal is of the Lorentz type when we obtain power spectrum by calculating the correlated function.The signal-to-noise ratio shows the stochastic resonance occurs with the variations of intensities of the pump noise and quantum noise,and the noise intensity of resonant peak is smaller than that under the zeroth approximation.