多模短波长激光在圆形球面腔中的传输  

TRANSMISSION OF SHORT WAVELENGTH LASER WITHTHE TRANSVERSE MULTIMODE IN CAVITIES WITHCIRCULAR MIRRORS OF SPHERICAL SURFACES

作　　者：付汉清[1] 王泰春[1] 

机构地区：[1]北京应用物理与计算数学研究所计算物理实验室,北京100088

出　　处：《计算物理》2002年第2期132-136,共5页Chinese Journal of Computational Physics

摘　　要：用数值积分方法求解了在圆柱坐标中的横向多模菲涅尔 (Fresnel)积分方程 .在初始复数光场振幅取均匀分布和随机分布的条件下对圆形球面共焦腔、稳定腔和平面腔的TEMn0 模进行了计算分析 .计算结果表明 ,球面腔单一模的数值结果同解析解的结果符合较好 。Fresnel integral equations of the transverse multimode are solved by the numerical integration method in the cylinder coordinate. Under the initial conditions of the uniform and random distribution given respectively for the complex light-field amplitude, TEM n0 modes of the confocal and stable cavities with circular mirrors of spherical surfaces as well as the plane cavity with circular mirrors are computed and analized. Computational results indicate that the numerical results of single mode for spherical cavity coincide with the analytical results. The results of the multimode not only conform to the behavior of the multimode space distribution, but also show that those of the fundamental mode dominate.

关 键 词：菲涅尔积分方程 横向多模 圆形球面稳定腔 圆形球面非稳腔 多模短波长激光 传输 数值积分 

分 类 号：TN242[电子电信—物理电子学]