ON PHASE MATCHING AND POWER COUPLING IN GRATING-ASSISTED COUPLERS

被引：5

作者：

HUANG, WP

LITTLE, BE

XU, CL

机构：

[1] Department of Electrical, Computer Engineering, University of Waterloo, Waterloo.

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1992年 / 4卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1109/68.122345

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Two formulas of phase-matching condition for grating-assisted couplers in the literature are compared. The power exchange between the waveguides is examined by a numerical solution to the coupled-mode equations and a direct simulation by the beam propagation method. It is demonstrated that the phase-matching of the normal modes of the coupler (array modes) will maximize the power coupling. The approximate phase-matching condition for the modes of the individual waveguides (waveguide modes), however, leads to only partial power exchange.

引用

收藏

页码：151 / 153

页数：3

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