Complete photonic bandgap-based polarization splitter on silicon-on-insulator platform

Preeti Rani; Yogita Kalra; Ravindra Kumar Sinha

doi:10.1117/1.JNP.10.026023

27 May 2016 Complete photonic bandgap-based polarization splitter on silicon-on-insulator platform

Preeti Rani, Yogita Kalra, Ravindra Kumar Sinha

Author Affiliations +

Journal of Nanophotonics, Vol. 10, Issue 2, 026023 (May 2016). https://doi.org/10.1117/1.JNP.10.026023

Abstract

We propose a design for a polarization beam splitter based on the phenomenon of a photonic crystal directional coupler. The design consists of a honeycomb lattice arrangement of air holes of different radii in a silicon-on-insulator substrate exhibiting a complete photonic bandgap. The results obtained by the finite-difference time domain method show that the extinction ratio for transverse electric (TE) and transverse magnetic (TM) polarizations is 24.56 and 28.29 dB, respectively, at a wavelength of 1.55 μm. The degree of polarization for TE polarization is 99.29% and for TM polarization is 99.70%. Hence, the proposed design can be efficiently used as a polarization splitter for on-chip integrated devices.

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Preeti Rani, Yogita Kalra, and Ravindra Kumar Sinha "Complete photonic bandgap-based polarization splitter on silicon-on-insulator platform," Journal of Nanophotonics 10(2), 026023 (27 May 2016). https://doi.org/10.1117/1.JNP.10.026023

Published: 27 May 2016

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