有限差分法在导波光学教学中的运用  

Application of Finite Difference Methods for Teaching Optical Waveguides

作　　者：邱晖晔[1] 王颖[1] 陈梁洁[1] 苏玉霞[1] 

机构地区：[1]龙岩学院,福建龙岩364000

出　　处：《龙岩学院学报》2014年第5期67-70,共4页Journal of Longyan University

基　　金：福建省教育厅科技项目(JK2013053);福建省教育厅A类项目(JA13303)

摘　　要：针对三维波导中电磁场分布比较复杂,近似方法的解析解无法提供实际需要的精确值,提出用有限差分法来解决麦克斯韦波动方程的本征解问题。以条形波导为例,用Matlab语言进行编程计算,将抽象的电磁场分布具体化和形象化,帮助学生理解和掌握该部分知识。Due to its complexity of the distribution of electromagnetic field, approximate methods are not accurate enough for analyzing three-dimensional optical waveguides. A finite difference method is proposed to solve Maxwell’ s wave Equations. The electromagnetic field of a channel waveguide is calculated by using Matlab. The results show that the abstract distribution of electromagnetic field is visualized, which helps students understand and master the relevant knowledge.

关 键 词：有限差分法 波导 波动方程 电磁场 

分 类 号：O436[机械工程—光学工程]