Mode field patterns and preferential mode coupling in planar waveguide-coupled square microcavities

被引：38

作者：

Fong, CY ^{[1
]}

Poon, AW ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

OPTICS EXPRESS | 2003年 / 11卷 / 22期

关键词：

D O I：

10.1364/OE.11.002897

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a numerical and analytical study of mode field patterns and mode coupling in planar waveguide-coupled square microcavities, using two-dimensional (2-D) finite-difference time-domain (FDTD) method and k-space representation. Simulated mode field patterns can be identified by k-space modes. We observe that different mode number parities permit distinctly different mode field patterns and spectral characteristics. Simulation results suggest that k-space modes that nearly match the waveguide propagation mode have a relatively high coupling efficiency. Such preferential mode coupling can be modified by the mode number parity. (C) 2003 Optical Society of America.

引用

页码：2897 / 2904

页数：8

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