| Stochastic resonance of bias signal-modulated noise in a single-mode laser＊ |
| |
| 引用本文： | 王俊,曹力,吴大进.Stochastic resonance of bias signal-modulated noise in a single-mode laser＊[J].中国物理 B,2004,13(11):1811-1814. |
| |
| 作者姓名： | 王俊 曹力 吴大进 |
| |
| 作者单位： | State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China;State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Chinese Centre of Advanced Science and Technology (World Laboratory), Beijing 100080, China; Department of Physics, Huazhong University of Scienc;Chinese Centre of Advanced Science and Technology (World Laboratory), Beijing 100080, China; Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 10275025). |
| |
| 摘 要： | Stochastic resonance (SR) for bias signal modulation is studied in a single-mode laser system. By investigating a gain-noise model driven by correlated pump noise and quantum noise, we find that, whether the correlation coefficient between both the noises is positive or negative, SR always appears in the dependence of signal-to-noise ratio (SNR) upon the noise correlation time and the frequency of the modulation signal. However, only when the correlation coefficient between both noises is negative can SR occur in the dependence of SNR upon the quantum noise intensity and pump noise intensity, while when the correlation coefficient between both noises is positive, it shows monotonically.
|
| 关 键 词： | 噪声信号调制 共鸣统计 线性近似法 数理方程 |
| 收稿时间： | 8/1/2003 12:00:00 AM |
Stochastic resonance of bias signal-modulated noise in a single-mode laser |
| |
| Wang Jun,Cao Li and Wu Da-Jin.Stochastic resonance of bias signal-modulated noise in a single-mode laser[J].Chinese Physics B,2004,13(11):1811-1814. |
| |
| Authors: | Wang Jun Cao Li and Wu Da-Jin |
| |
| Institution: | State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Chinese Centre of Advanced Science and Technology (World Laboratory), Beijing 100080, China; Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China |
| |
| Abstract: | Stochastic resonance (SR) for bias signal modulation is studied in a single-mode laser system. By investigating a gain-noise model driven by correlated pump noise and quantum noise, we find that, whether the correlation coefficient between both the noises is positive or negative, SR always appears in the dependence of signal-to-noise ratio (SNR) upon the noise correlation time and the frequency of the modulation signal. However, only when the correlation coefficient between both noises is negative can SR occur in the dependence of SNR upon the quantum noise intensity and pump noise intensity, while when the correlation coefficient between both noises is positive, it shows monotonically. |
| |
| Keywords: | bias signal-modulated noise stochastic resonance linear approximation method |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|
