绝缘硅大截面脊波导的单模条件验证  

Verification of Single-Mode Condition of Silicon-on-Insulator Rib Waveguides with Large Cross-Section

作　　者：严朝军[1] 彭文标[1] 李海军[1] 万钧力[1] 

机构地区：[1]三峡大学计算机与信息学院,湖北宜昌443002

出　　处：《光学学报》2012年第F12期188-192,共5页Acta Optica Sinica

摘　　要：大截面绝缘硅（SOI）单模脊波导在通信系统中应用广泛，有必要验证文献中给出的单模条件。对于两个满足单模条件的脊波导例子，用标量有限差分波束传输法求解脊波导的导模。如果对波导横向截面上的两个方向细分，模拟实验表明水平方向的单模条件比较精确，垂直方向的单模条件很容易举出反例。更加精确的单模条件公式需要进一步研究。The devices of rib waveguides on silicon-on-insulator （SOD with large cross-section are widely used in modern communication systems. It is necessary to verify the single-mode condition proposed in papers. The scalar finite difference beam propagation method is used to solve the guide modes supported by rib waveguides. It is found that the precision of equation needs to be improved. The precision of single-mode condition in horizontal direction is better than the equation in vertical equation with better accuracy needs.

关 键 词：集成光学 脊波导 单模条件 绝缘硅 有限差分波束传输法 

分 类 号：O436[机械工程—光学工程]