Properties of one-dimensional magnetophotonic crystals for use in optical isolator devices

Author

Kato, H. ; Matsushita, T. ; Takayama, A. ; Egawa, M. ; Nishimura, K. ; Inoue, M.

Author_Institution

R&D Center, Minebea Co. Ltd., Shizuoka, Japan

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

3246

Lastpage

3248

Abstract

A one-dimensional (1-D) magnetophotonic crystal (MPC) film made of a magneto-optical layer with nonmagnetic layers laminated thereon has an enhanced Faraday rotation. Theoretical studies about 1-D MPC films for use in magneto-optical (MO) applications of optical communication were carried out. The calculations revealed that required optical isolator performance (transmittance T>95% and Faraday rotation angle θ_F=45°) can be fulfilled with the periodic multilayer films having only two or three magnetic layers. The structure of 1-D MPC films satisfying the optical isolator performance is very simple, which is very attractive for actual optical isolator fabrication.

Keywords

Faraday effect; magnetic multilayers; magneto-optical isolators; optical communication equipment; periodic structures; Faraday rotation angle; enhanced Faraday rotation; laminated nonmagnetic layers; magneto-optical layer; one-dimensional magnetophotonic crystals; optical communication; optical isolator devices; optical isolator performance; periodic multilayer films; transmittance; Isolators; Magnetic devices; Magnetic films; Magnetic materials; Magnetic properties; Magnetooptic devices; Optical devices; Optical fiber communication; Optical films; Photonic crystals;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802511

Filename

1042512