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Radiatively Coupled Waveguide Concept for an Integrated Magneto-Optic Circulator

Published online by Cambridge University Press:  10 February 2011

M. Lohmeyer ,
M. Shamonin ,
N. Bahlmann ,
P. Hertel  and
H. Dotsch
M. Lohmeyer
Affiliation:
Department of Physics, University of Osnabrück, 49069 Osnabrück, Germany
M. Shamonin
Affiliation:
Department of Physics, University of Osnabrück, 49069 Osnabrück, Germany
N. Bahlmann
Affiliation:
Department of Physics, University of Osnabrück, 49069 Osnabrück, Germany
P. Hertel
Affiliation:
Department of Physics, University of Osnabrück, 49069 Osnabrück, Germany
H. Dotsch
Affiliation:
Department of Physics, University of Osnabrück, 49069 Osnabrück, Germany
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Abstract

Three-guide couplers with multimode central waveguides allow for remote coupling between optical channels. A simple three mode approximation turns out to be sufficient for the description of the main features of the power transfer behavior. The specific form of the relevant modes suggests the design of integrated optical isolators and circulators based on magnetic garnet materials. These novel devices are superior to conventional nonreciprocal couplers with respect to the total length and admissible fabrication tolerances. We characterize the isolation performance and the transmission loss for the proposed devices by propagating mode simulations and estimate the influence of geometry parameter deviations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 517: Symposium F – Wide Bandgap Semiconductors for High Power, High Frequency , January 1998 , 519
Copyright
Copyright © Materials Research Society 1998

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References

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