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Mid Infra-red Directional Coupler Optical Switch Based on Phase Change Material Embedded in Partially Etched SOI Waveguide

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Abstract

An ultra-compact 1×2 optical coupler switch at wavelength 2.1 µm is designed and simulated using Ge2Sb2Te5 embedded in silicon waveguide. The phase alteration of Ge2Sb2Te5 results in coupling ratio change from > 90% to < 2%.

© 2018 The Author(s)

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