Efficient magneto-optical TE/TM mode converter in a hybrid structure made with a SiO2/ZrO2 layer coated on an ion-exchanged glass waveguide
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Date
2018
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Université de M'sila
Abstract
The TE-TM mode conversion is an important requirement for magneto-optical waveguide
devices. In this work, we report on the theoretical study of magneto-optical waveguides
on an ion-exchanged glass waveguide. This study explores the possibility to realize a mode
converter TE-TM on a hybrid structure. This hybrid device is made by coating a SiO2/ZrO2
layer doped with magnetic nanoparticles on an ion-exchanged glass waveguide. It has
been analyzed by means of a beam propagation method for numerical solution of the
full-vectorial wave equation. We have also used the transparent boundary condition. The
mode converters TE-TM based on the Faraday rotation and modal birefringence are then
numerically simulated. Depending on the increasing of nanoparticles volume fraction in
the SiO2/ZrO2 layer and on decreasing the modal birefringence of the hybrid structure, the
TE-TM conversion efficiency varies from several percent to several tens of percent.
© 2017 Published by Elsevier GmbH
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Keywords: Magneto optic Ion-exchanged glass Hybrid waveguide Isolator optics