A NEW APPROACH TO GRATING-ASSISTED COUPLERS

被引：21

作者：

HUANG, WP

LITTLE, BE

CHAUDHURI, SK

机构：

[1] Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1991年 / 9卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Integrated Optics - Light - Propagation in Guides - Optical Gratings - Waveguides; Optical;

D O I：

10.1109/50.81974

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：

A new approach to the analysis and design of grating-assisted directional couplers is proposed and presented. Power exchange between the waveguides is maximized through phase matching of two power-orthogonal modes of the parallel coupler. It is shown that either complete power transfer or zero crosstalk can be achieved at two different coupling lengths even when the two wavelengths are strongly coupled and/or close to synchronism. An analytical solution to the coupled-mode equations is obtained for the grating of rectangular shape. A grating-assisted coupler made of two slab waveguides is examined as an example to illustrate the salient features of the new scheme.

引用

页码：721 / 727

页数：7

共 13 条

[1]

ALFERNESS RC, IN PRESS APPL PHYS L

[2] INGAASP Y-BRANCH GRATING DEMULTIPLEXER [J].