Research Papers

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

[+] Author Affiliations
Preeti Rani, Yogita Kalra

Delhi Technological University (formerly Delhi College of Engineering, University of Delhi), TIFAC-Centre of Relevance and Excellence in Fiber Optics and Optical Communication, Department of Applied Physics, Bawana Road, Delhi 110042, India

Ravindra Kumar Sinha

Delhi Technological University (formerly Delhi College of Engineering, University of Delhi), TIFAC-Centre of Relevance and Excellence in Fiber Optics and Optical Communication, Department of Applied Physics, Bawana Road, Delhi 110042, India

Central Scientific Instruments Organization, Sector 30 C, Chandigarh 160030, India

J. Nanophoton. 10(2), 026023 (May 27, 2016). doi:10.1117/1.JNP.10.026023
History: Received March 9, 2016; Accepted April 28, 2016
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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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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

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


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