| 平方泵噪声驱动的单模激光立方模型及光强定态概率分布 |
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| 引用本文： | 许德胜,曹力,吴大进. 平方泵噪声驱动的单模激光立方模型及光强定态概率分布[J]. 物理学报, 2006, 55(2): 692-695 |
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| 作者姓名： | 许德胜 曹力 吴大进 |
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| 作者单位： | (1)华中科技大学激光技术国家重点实验室，武汉 430074; (2)华中科技大学激光技术国家重点实验室，武汉 430074;中国高等科学技术中心,北京 100080; (3)华中科技大学物理系，武汉 430074;中国高等科学技术中心,北京 100080 |
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| 摘 要： | 合理地引入了平方泵噪声到单模激光的立方模型中. 得到封闭的光强朗之万方程. 基于作者早期关于非线性外噪声的近似福克-普朗克方程(AFPE)的工作，得到了光强概率分布的AFPE，求出了该AFPE的归一化定态概率分布的精确解析表达式，并根据表达式对泵噪声实部和虚部之间的关联系数λ的对称性，得出了若干关于系统定态统计性质的普遍结论. 关键词：平方泵噪声单模激光的立方模型光强定态概率分布统计性质重复出现
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| 关 键 词： | 平方泵噪声 单模激光的立方模型 光强定态概率分布 统计性质重复出现 |
| 文章编号： | 1000-3290/2006/55(02)/0692-04 |
| 收稿时间： | 2005-04-27 |
| 修稿时间： | 2005-04-272005-06-21 |
Cubic model of a single-mode laser driven by quadratic pump noise and the steady probability distribution of laser intensity |
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| Xu De-Sheng,Cao Li,Wu Da-Jin. Cubic model of a single-mode laser driven by quadratic pump noise and the steady probability distribution of laser intensity[J]. Acta Physica Sinica, 2006, 55(2): 692-695 |
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| Authors: | Xu De-Sheng Cao Li Wu Da-Jin |
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| Affiliation: | 1. State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China ;2.Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China;3.CCAST( World Laboratory |
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| Abstract: | A single_mode laser cubic model driven with quadratic pump noise is proposed. Closed laser intensity Langevin equation is got. Based on our early work of the Approximation Fokker_Planck equation (AFPE) for the systems driven by nonlinear external noise ［Cao L and Wu D J 1988 Phys. Lett. A 133 476］, the AFPE for laser intensity probability distribution is obtained. Exact analytic expression for the steady normalized intensity probability distribution is calculated. Based on the symmetry of steady normalized intensity probability distribution with respect to λ, the cross_correlation coefficient between the real and imaginary parts of pump noise, several general conclusions on the steady statistical property of laser system are reached. |
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| Keywords: | quadratic pump noise cubic model of a single-mode laser steady probability distribution of laser intensity reentrance of statistical property |
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