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首页> 外文期刊>Physica, A. Statistical mechanics and its applications >Stochastic resonance for modulated gain in a single-mode laser
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Stochastic resonance for modulated gain in a single-mode laser

机译：单模激光器中的调制增益的随机共振

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摘要

Stochastic resonance (SR) induced by the signal modulation is investigated, by introducing the signal-modulated gain into a single-mode laser system. Using the linear approximation method, we detailedly calculate the signal-to-noise ratio (SNR) of a gain-noise model of the single-mode laser, taking the cross-correlation between the quantum noise and pump noise into account. We find that, SR appears in the dependence of the SNR on the intensities of the quantum and the pump noises when the correlation coefficient between both the noises is negative; moreover, when the cross-correlation between the two noises is strongly negative, SR exhibits a resonance and a suppression versus the gain coefficient, meanwhile, the single-peaked SR and multi-peaked SR occur in the behaviors of the SNR as functions of the loss coefficient and the deterministic steady-state intensity. (c) 2005 Elsevier B.V. All rights reserved.
机译：通过将信号调制增益引入单模激光系统，研究了由信号调制引起的随机共振（SR）。使用线性逼近方法，我们在考虑了量子噪声和泵浦噪声之间的互相关的情况下，详细计算了单模激光器增益噪声模型的信噪比（SNR）。我们发现，当两种噪声之间的相关系数为负值时，SR取决于SNR对量子强度和泵浦噪声的依赖性;此外，当两个噪声之间的互相关强烈为负时，SR与增益系数相比呈现出共振和抑制，同时，SNR的行为中出现了单峰SR和多峰SR，这与噪声的函数有关。损耗系数和确定性稳态强度。 （c）2005 Elsevier B.V.保留所有权利。

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