Title :
Two dimensional photonic crystal ring resonator based bandpass filter
Author :
Robinson, S. ; Nakkeeran, R.
Author_Institution :
Dept. of Electron. & Commun. Eng., Pondicherry Eng. Coll., Pondicherry, India
Abstract :
A two dimensional Photonic Crystal Bandpass Filter (2D-PCBPF) is designed by exploiting coupling between the waveguide and circular Photonic Crystal Ring Resonator (PCRR). By adjusting the dielectric constant of the structure and the radius of the coupling rod, the output efficiency is investigated. The normalized transmission spectra of circular PCRR have been studied using Finite Difference Time Domain (FDTD) method. The Photonic Bandgap (PBG) has been calculated by Plane Wave Expansion (PWE) method. Approximately 100% output efficiency is observed over the wavelength ranges from 1510 nm to 1520 nm through this simulation. We further investigated parameters which affect the resonant wavelength and output efficiency of these proposed PCBPF. The important parameters consider for this studies are number of rods in the reflector, scatterer rods around the cavity and size of the cavity.
Keywords :
band-pass filters; finite difference time-domain analysis; optical design techniques; optical filters; optical resonators; optical waveguides; permittivity; photonic band gap; photonic crystals; 2D photonic crystal ring resonator based bandpass filter; FDTD method; PWE method; dielectric constant; finite difference time domain method; normalized transmission spectra; optical design; optical waveguide; output efficiency; photonic bandgap; plane wave expansion method; reflector rods; resonant wavelength; scatterer rods; wavelength 1510 nm to 1520 nm; Band pass filters; Cavity resonators; Couplings; Dielectric constant; Optical ring resonators; Optical waveguides; Photonic crystals; FDTD method; PWE method; Photonic crystal ring resonator; bandpass filter; photonic bandgap;
Conference_Titel :
Communication and Computational Intelligence (INCOCCI), 2010 International Conference on
Conference_Location :
Erode
