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Journal of Nanophotonics • new

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

Paper Details

Date Published: 27 May 2016
PDF: 7 pages
J. Nanophoton. 10(2) 026023 doi: 10.1117/1.JNP.10.026023
Published in: Journal of Nanophotonics Volume 10, Issue 2
Show Author Affiliations
Preeti Rani, Delhi Technological Univ. (India)
Yogita Kalra, Delhi Technological Univ. (India)
Ravindra Kumar Sinha, Delhi Technological Univ. (India)
Central Scientific Instruments Organization (India)

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