两种不同方法计算光波导边界畸变引起的损耗比较  

Comparison of Two Different Methods for Calculation of Waveguide Loss Caused by Random Surface Roughness of an Optical Waveguide

作　　者：王子华[1] 李明生[1] 王荣彬[1] 张辉[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2001年第4期307-310,共4页Journal of Shanghai University:Natural Science Edition

摘　　要：计算光波导边界随机畸变产生的损耗有耦合波理论和边界散射理论两种方法 .该文以非对称平板介质波导为例 ,将这两种方法进行比较 ,发现虽然它们的原理不同 。There are two different methods for calculating the loss of an optical waveguide with random surface roughness: coupled mode theory and surface scattering theory. Taking an asymmetric slab waveguide as an example, these two methods are compared and it is found that they are different in principle, but give the same results.

关 键 词：介质光波导 辐射损耗 耦合波理论 边界散射理论 边界畸变 计算方法 

分 类 号：TN252[电子电信—物理电子学]