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

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6 Author(s)
Kato, H. ; R&D Center, Minebea Co. Ltd., Shizuoka, Japan ; Matsushita, T. ; Takayama, A. ; Egawa, M.
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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 θF=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.

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Magnetics, IEEE Transactions on  (Volume:38 ,  Issue: 5 )