Wideband design of nonreciprocal phase shift magneto-optical isolators using phase adjustment in Mach-Zehnder interferometers

被引：21

作者：

Shoji, Yuya

Mizumoto, Tetsuya

机构：

[1] Tokyo Inst Technol, Dept Elect & Elect Engn, Meguro Ku, Tokyo 1528552, Japan

[2] Optoelect Ind & Technol Dev Assoc, Bunkyo Ku, Tokyo 1120014, Japan

来源：

APPLIED OPTICS | 2006年 / 45卷 / 27期

关键词：

D O I：

10.1364/AO.45.007144

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A wideband design is proposed for nonreciprocal phase shift magneto-optical isolators based on Mach-Zehnder interferometers. The wavelength dependence of nonreciprocal phase difference between the backward waves propagating in two interferometer arms is compensated for by that of reciprocal phase difference. This is realized by introducing an appropriate phase bias in one of interferometer arms. Two design examples are presented with a backward loss of > 30 dB in the wavelength range of 1.40-1.63 mu m for a magnetic garnet waveguide isolator and of 1.485-1.630 mu m for a Si-wire waveguide isolator. (c) 2006 Optical Society of America

引用

收藏

页码：7144 / 7150

页数：7

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