Title :
Novel Design of Ultra-Compact Triangular Lattice Silica Photonic Crystal Polarization Converter
Author :
Hameed, Mohamed Farhat O ; Abdelrazzak, Maher ; Obayya, S.S.A.
Author_Institution :
Centre for Photonics & Smart Mater., Zewail City of Sci. & Technol., 6th of October City, Egypt
Abstract :
A novel design of ultra-compact polarization rotator (PR) based on triangular lattice silica photonic crystal fiber is proposed and analyzed. The suggested design has a central air hole which can be shifted in x and y directions to achieve complete polarization rotation. The influence of the different structure geometrical parameters and operating wavelength on the PR performance is investigated. The simulation results are obtained using full vectorial finite difference method as well as full vectorial finite difference beam propagation method. The numerical results reveal that the reported PR can provide nearly 100% polarization conversion ratio with a device length of 206 μm. It is also expected that over the 1.5-1.6 μ m wavelength range, polarization conversion would be more than 99%.
Keywords :
finite difference methods; holey fibres; optical design techniques; optical fibre polarisation; optical fibre theory; optical rotation; photonic crystals; silicon compounds; PR performance; SiO2; central air hole; complete polarization rotation; device length; full vectorial finite difference beam propagation method; full vectorial finite difference method; numerical method; operating wavelength; polarization conversion ratio; silica photonic crystal polarization converter; size 206 mum; structure geometrical parameters; triangular lattice silica photonic crystal fiber; ultracompact polarization rotator; wavelength 1.5 mum to 1.6 mum; Fabrication; Finite difference methods; Indexes; Lattices; Materials; Optical waveguides; Silicon compounds; Photonic crystal fibers; beam propagation method; finite difference method; polarization rotator;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2228631
