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Low cross talk polarization splitter based on photonic crystal waveguide with tunable air hole arrays

CANCAN WANG1, HAO GUO1, XIONG ZHANG1,* , YIPING CUI1

Affiliation

  1. Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, P. R. China

Abstract

We proposed and numerically investigate d a novel two dimensional (2D) photonic crystal (PhC) based polarization splitter. It was demonstrated that by introducing single air hole defect into the PhC structure, a low cross talk polarizat ion splitter can be realized with significantly minimized reflection occurring at the interface between the dielectric material and air. For an operating wavelength of 1.55 µm, an extinction ratio higher than 15 dB has been achieved in this study The low cross-talk feature together with the high tolerance of the variation in the size of the air hole arrays make the device proposed suitable for the integrated optical circuits..

Keywords

Polarization splitter, Photonic crystal, Light extinction ratio.

Citation

CANCAN WANG, HAO GUO, XIONG ZHANG, YIPING CUI, Low cross talk polarization splitter based on photonic crystal waveguide with tunable air hole arrays, Optoelectronics and Advanced Materials - Rapid Communications, 7, 3-4, March-April 2013, pp.163-166 (2013).

Submitted at: Nov. 1, 2012

Accepted at: April 11, 2013