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Stochastic Resonance in Linear Regime of a Single-Mode Laser |
| ZHANG Liang-Ying1,2;CAO Li1,3;WU Da-Jin3,4;WANG Jun1 |
| 1State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074
2Department of Physics, Xiangfan University, Xiangfan 441053
3CCAST (World Laboratory), PO Box 8730, Beijing 100080
4Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
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| Cite this article: |
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ZHANG Liang-Ying, CAO Li, WU Da-Jin et al 2003 Chin. Phys. Lett. 20 25-27 |
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Abstract We present an analytic investigation of the signal-to-noise ratio by studying the linear model of a single-mode laser driven by colored pump noise (τ1) and colored quantum noise (τ2) with colored cross-correlation (τ3), and obtain an exact analytic expression of the signal-to-noise ratio. We detect that the stochastic resonance occurs when the noise correlation coefficient λ < 0. Furthermore, we analyse the effect of τ1, τ2, and τ3 on the signal-to-noise ratio, and derive the condition under which the stochastic resonance occurs.
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| Keywords:
05.40.-a
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Published: 01 January 2003
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| PACS: |
05.40.-a
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(Fluctuation phenomena, random processes, noise, and Brownian motion)
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