Compact hybrid TM-pass polarizer for silicon-on-insulator platform

被引：70

作者：

Alam, Muhammad ^{[1
]}

Aitchsion, J. Stewart ^{[1
]}

Mojahedi, Mohammad ^{[1
]}

机构：

[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

来源：

APPLIED OPTICS | 2011年 / 50卷 / 15期

基金：

加拿大自然科学与工程研究理事会;

关键词：

PLASMONIC WAVE-GUIDE;

D O I：

10.1364/AO.50.002294

中图分类号：

O43 [光学];

学科分类号：

070207 [光学];

摘要：

Hybrid waveguides consisting of a metal plane separated from a high-index medium by a low-index spacer have recently attracted a lot of interest. TM and TE modes are guided in two different layers in these structures and their properties can be controlled in different manners by changing the waveguide dimensions and material properties. We examine the effects of different parameters on the characteristics of the two modes in such structures. We show that by properly choosing the dimensions, it is possible to cut off the TE mode while the TM mode can still be guided in a well-confined manner. Using this property of the hybrid guide, we propose a TM-pass polarizer. The proposed device is very compact and compatible with the silicon-on-insulator platform. Finite-difference time-domain simulation indicates that such a polarizer can provide a high extinction of the TE mode for a reasonable insertion loss of the TM mode. (C) 2011 Optical Society of America

引用

页码：2294 / 2298

页数：5

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