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Integrated optical isolator and circulator using nonreciprocal phase shifters: a proposal

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Abstract

In this paper, we propose an integrated optical isolator and circulator using nonreciprocal phase shifters combined with Y-branch couplers or hybrid couplers. They are not used in mode coupling between orthogonally polarized waves, which leads to reduce the fabrication tolerance. We present a design example using the guide structure of YIG film and GGG substrate.

© 1984 Optical Society of America

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