克尔放大介质中功率增益最大的空间频率成份  

Spatial frequency with the largest power-gain in an amplifying Kerr medium

作　　者：王逍[1] 林晓东[1] 陆丹[1] 张菁[1] 陈建国[1] 李大义[1] 

机构地区：[1]四川大学光电系,成都610064

出　　处：《激光杂志》2002年第3期13-14,共2页Laser Journal

摘　　要：数值求解了克尔放大介质中描述圆柱对称平面光束小扰动发展变化的微分方程 ,指出了介质入口处和出口处的最快增长频率都不是功率增长最大的空间频率 ,并在此基础上研究了增长最大的空间频率与介质长度及增益系数的关系。Equations(deduced from the paraxial wave nonlinear equation)describing evolutions of perturbations superimposed on a circularly symmetric planar wave have been numerically solved for amplifying nonlinear Kerr medium.The results indicate that the spatial frequency component q _ max which experiences the largest gain after passing the Kerr medium is not a constant,and its dependences on the length and gain coefficient of the medium have been studied.

关 键 词：增益克尔介质 扰动 空间频率 功率增益 

分 类 号：TN242[电子电信—物理电子学]