| 白噪声关联调制对单模激光信噪比的影响 |
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| 引用本文： | 陈德彝,王忠龙.白噪声关联调制对单模激光信噪比的影响[J].三峡大学学报(自然科学版),2008,30(6). |
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| 作者姓名： | 陈德彝 王忠龙 |
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| 作者单位： | 三峡大学,理学院,湖北,宜昌,443002 |
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| 摘 要： | 用线性化近似方法计算了单模激光增益模型的光强功率谱及信噪比,以噪声、信号频率和时间周期调制频率为参数讨论信噪比R随量子噪声强度D的变化,发现负关联情况下会出现随机共振,对噪声间关联程度的时间周期调制是引发随机共振的重要因素.
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| 关 键 词： | 时间周期调制频率 噪声间关联程度 随机共振 信噪比 |
Effect of White Noise Correlation Modulation for Signal to Noise Ratio of Single-Mode Laser |
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| Chen Deyi,Wang Zhonglong.Effect of White Noise Correlation Modulation for Signal to Noise Ratio of Single-Mode Laser[J].Journal of China Three Gorges University(Natural Sciences),2008,30(6). |
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| Authors: | Chen Deyi Wang Zhonglong |
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| Institution: | Chen Deyi Wang Zhonglong (College of Science,China Three Gorges Univ.,Yichang 443002,China) |
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| Abstract: | By means of the linear approximation method,the signal to noise ratio and power spectra of the intensity for the gain model of single-mode laser are calculated.The evolution of the signal-noise ratio R with the quantum noise intensity D is discussed in the parameters of the noise and signal frequency and time period modulation frequency.It is found that the stochastic resonance presents in the case of the negative correlation.The time period modulation for the noise correlation intensity is primary cause of... |
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| Keywords: | time period modulation frequency noise correlation intensity stochastic resonance signal to noise ratio |
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