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Proceedings Paper

Analysis of nonreciprocal mode propagation in magneto-optic ridge waveguide structures
Author(s): Mikhail Shamonin; Andreas Erdmann; Peter Hertel; Horst Doetsch
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Paper Abstract

Passive nonreciprocal components, such as isolators or circulators, can only be realized with magneto-optic, hence gyrotropic media. With lateral magnetization, the quasi TM/TE approximation is applicable, and only TM-modes exhibit nonreciprocal propagation. We investigate a waveguide consisting of a multi-layered ridge on top of a multi-layered substrate. Several methods (effective index, finite-difference, spectral index and Galerkin's) for calculating differences of forward and backward propagation constants are discussed. It is shown that a way to increase the nonreciprocal effect is to provide for strongly non- symmetrical structures.

Paper Details

Date Published: 25 August 1994
PDF: 12 pages
Proc. SPIE 2212, Linear and Nonlinear Integrated Optics, (25 August 1994); doi: 10.1117/12.185142
Show Author Affiliations
Mikhail Shamonin, Univ. Osnabrueck (Germany)
Andreas Erdmann, Univ. Osnabrueck (Germany)
Peter Hertel, Univ. Osnabrueck (Germany)
Horst Doetsch, Univ. Osnabrueck (Germany)

Published in SPIE Proceedings Vol. 2212:
Linear and Nonlinear Integrated Optics
Giancarlo C. Righini; David Yevick, Editor(s)

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