| Stochastic Resonance in Linear Region of a Single-Mode Laser： Effects of Amplitude Modulation of Signal |
| |
| 摘 要： |
|
| 关 键 词： | 随机反应 单一模式激光 振幅 调制信号 |
| 收稿时间： | 2007-05-28 |
Stochastic Resonance in Linear Region of a Single-Mode Laser:
Effects of Amplitude Modulation of Signal |
| |
| Authors: | ZHANG Liang-Ying CAO Li WU Da-Jin |
| |
| Institution: | 1. Department of Physics, Xiangfan University, Xiangfan 441053,
China
;2. Department of Physics, Huazhong University of Science and
Technology, Wuhan 430074, China |
| |
| Abstract: | A single-mode laser noise model driven by quadratic colored pump noise and amplitude modulation signal is proposed. The real and imaginary
parts of the pump noise are assumed to be cross-correlation. The effect of
cross-correlation of noise and amplitude modulation of signal on laser
statistical properties is studied by using the linearized approximation. The
analytic expression of signal-to-noise ratio (SNR) is calculated. It is
found that the phenomena of stochastic resonance (SR) respectively exist in the
curves of the SNR versus the noise cross-correlation coefficient λ
and the SNR versus the pump parameter a, as well as the SNR versus the
signal frequency
ω in our model. It is shown that there are three different typies of SR in the model: the conventional form of SR, the SR in the broad sense, and the bona fide SR. |
| |
| Keywords: | stochastic resonance single-mode laser amplitude modulation signal |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
| 点击此处可从《理论物理通讯》下载免费的PDF全文 |
