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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

Cubic model of a single-mode laser driven by quadratic pump noise and the steady probability distribution of laser intensity

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【Author】 Xu De_Sheng~ 1) Cao Li~ 1)3) Wu Da_Jin~ 2)3) 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), Beijing\ 100080, China)

【机构】华中科技大学激光技术国家重点实验室；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；武汉430074；

【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.更多还原

【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.更多还原

【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；
【Key words】 quadratic pump noise； cubic model of a single_mode laser； steady probability distribution of laser intensity； reentrance of statistical property；

【基金】国家自然科学基金(批准号:10275025)资助的课题.~~

【文献出处】物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2006年02期

【分类号】TN241
【被引频次】3
【下载频次】62

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