| Intensity correlation time of a single-mode laser driven by two coloured noises with coloured cross-correlation with direct signal modulation |
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| 作者姓名： | 陈黎梅 曹力 吴大进 王忠龙 |
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| 作者单位： | State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan, 430074, China;Department of Physics, Shenzhen University, Shenzhen, 518057, China;State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; China Centre of Advanced Science and Technology (World Laboratory),Beijing,100080, China;Department of Physics, Huazhong University of Science and Technology, Wuhan,430074, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 10275025). |
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| 摘 要： |
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| 关 键 词： | 简单模式激光器 驱动方式 双色噪声 直接信号修正 线性逼近法 |
| 收稿时间： | 2004-08-11 |
Intensity correlation time of a single-mode laser driven by two coloured noises with coloured cross-correlation with direct signal modulation |
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| Chen Li-Mei,Cao Li,Wu Da-Jin and Wang Zhong-Long.Intensity correlation time of a single-mode laser driven by two coloured noises with coloured cross-correlation with direct signal modulation[J].Chinese Physics B,2005,14(4):764-770. |
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| Authors: | Chen Li-Mei Cao Li Wu Da-Jin and Wang Zhong-Long |
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| Institution: | Department of Physics, Huazhong University of Science and Technology, Wuhan,430074, China; Department of Physics, Shenzhen University, Shenzhen, 518057, China; State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; China Centre of Advanced Science and Technology (World Laboratory),Beijing,100080, China |
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| Abstract: | In this paper, the intensity correlation time T is studied for the gain-noise model of a single-mode laser driven by coloured pump noise and coloured quantum noise with coloured cross-correlation with a direct signal modulation. By using the linear approximation method, it is found that when the pump noise is modulated directly by a signal, the effects of the cross-correlation between the pump noise and the quantum noise will disappear. In addition, there exists a maximum (i.e. resonance) in the curve of the intensity correlation time $T$ versus the pump noise self-correlation time \tau1. Furthermore, when \tau1\le\tau2, the intensity correlation time T increases monotonically with the increase of $D$ and decreases monotonically with the increase of Q, but when \tau1>\tau2, the intensity correlation time T increases monotonically with the increase of Q and decreases monotonically with the increase of D. |
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| Keywords: | intensity correlation time direct modulation signal linear approximation method |
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