Optical isolation based on nonreciprocal phase shift induced by interband photonic transitions

被引：58

作者：

Yu, Zongfu ^{[1
]}

Fan, Shanhui ^{[1
]}

机构：

[1] Stanford Univ, Ginzton Lab, Stanford, CA 94305 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 17期

基金：

美国国家科学基金会;

关键词：

coupled mode analysis; Mach-Zehnder interferometers; optical circulators; optical isolators; optical waveguide theory; silicon;

D O I：

10.1063/1.3127531

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photonic transitions in waveguides can create nonreciprocal phase response for counterpropagating modes. Such effect can be used in Mach-Zehnder interferometers to form optical isolators and circulators. Performance of such device is analyzed using coupled mode theory given the experimentally available modulation in silicon. The proposed scheme can provide a broadband (>0.8 THz), high contrast ratio (>20 dB) optical isolation at telecommunication wavelength.

引用

页数：3

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