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脉冲信号被噪声调制的单模激光随机共振

张莉 元秀华 武力

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脉冲信号被噪声调制的单模激光随机共振

张莉, 元秀华, 武力

Stochastic resonance for pulse signal modulated by noise in a single-mode laser system

Zhang Li, Yuan Xiu-Hua, Wu Li
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  • 建立了一个脉冲信号受噪声调制的新型的单模激光随机共振模型, 采用线性化近似的方法计算了相应的光强关联函数和系统的输出信噪比, 并详细讨论了相应的随机共振现象. 研究结果表明: 由于噪声调制脉冲信号, 使得单模激光表现出崭新的随机共振现象, 即通过改变脉冲信号周期T来实现抑制或优化输出信噪比的目的.
    A new model of stochastic resonance, in which the pulse signal is modulated by noise, is established for a single-mode laser system. The corresponding intensity correlation function and the output signal-to-noise ratio of the system are calculated in the linear approximation. The phenomena of stochastic resonance are thoroughly discussed. Results reveal that due to the pulse signal modulated by noise, the single-mode laser exhibits a novel stochastic resonance phenomenon, that is, the optimization or the restraint of output signal-to-noise ratio can be controlled by the adjustment of the pulse signal period T.
    • 基金项目: 国家自然科学基金(批准号: 61103248)资助的课题.
    • Funds: Project supported by the National Natural Science Foundation of China (Grant No. 61103248).
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    Zhang L Y, Jin G X, Cao L 2008 Acta Phys. Sin. 57 4706 (in Chinese) [张良英, 金国祥, 曹力 2008 物理学报 57 4706]

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    Jin G X, Zhang L Y, Cao L 2009 Chin. Phys. B 18 1380

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    Wang J, Bai Y M, Cao L, Wu D J 2006 Physica A 368 31

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  • [1]

    Goychuk I, Hanggi P 2004 Phys. Rev. E 69 021104

    [2]

    Casado-Pascual J, Gomez-Ordonez J, Morillo M 2003 Phys. Rev. Lett. 91 210601

    [3]
    [4]

    Volman V, Levine H 2008 Phys. Rev. E 77 060903

    [5]
    [6]

    Long Z C, Qin Y G 2003 Phys. Rev. Lett. 91 208103

    [7]
    [8]
    [9]

    Hidaka I, Nozaki D, Yamamoto Y 2000 Phys. Rev. Lett. 85 3740

    [10]

    Liu L, Wu D J 2009 College Physics 16 28 (in Chinese) [刘立, 吴大进 2009 大学物理 16 28]

    [11]
    [12]
    [13]

    Zheng Z G, Hu G, Hu B B 2001 Phys. Rev. Lett. 86 2273

    [14]
    [15]

    Cao Z J, Li P F, Hu G 2007 Chin. Phys. Lett. 24 882

    [16]
    [17]

    Santos G J E, Rivera M, Parmananda P 2004 Phys. Rev. Lett. 92 230601

    [18]

    Chen D Y, Wang Z L 2009 Acta Phys. Sin. 58 102 (in Chinese) [陈德彝, 王忠龙 2009 物理学报 58 102]

    [19]
    [20]
    [21]

    Zhang L Y, Jin G X, Cao L 2008 Acta Phys. Sin. 57 4706 (in Chinese) [张良英, 金国祥, 曹力 2008 物理学报 57 4706]

    [22]

    Jin G X, Zhang L Y, Cao L 2009 Chin. Phys. B 18 1380

    [23]
    [24]
    [25]

    Wang J, Bai Y M, Cao L, Wu D J 2006 Physica A 368 31

    [26]

    Xu D S, Cao L, Wu D J 2009 Int. J. Mod. Phys. B 22 4665

    [27]
    [28]
    [29]

    Hernandez-Garcia E, Toral R, San Miguel M 1990 Phys. Rev. A 42 6823

    [30]

    Zhu S Q 1993 Phys. Rev. A 47 2405

    [31]
    [32]
    [33]

    Wang J, Zhu S Q 1995 Phys. Lett. A 207 47

计量
  • 文章访问数:  6109
  • PDF下载量:  672
  • 被引次数: 0
出版历程
  • 收稿日期:  2011-09-22
  • 修回日期:  2012-06-05
  • 刊出日期:  2012-06-05

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