Title :
Effect of variable dielectric constant of Si material rods on 2-D photonic crystal ring resonator based channel drop filter for ITU.T.694.2 CWDM system
Author :
Chhipa, Mayur Kumar ; Rewar, Ekta
Author_Institution :
Dept. of Electron. & Commun., Gov. Eng. Coll. Ajmer, Ajmer, India
Abstract :
In this paper, a new work on channel drop filters (CDFs) based on photonic crystals ring resonators (PCRRs) is presented. The filter characteristics for single-ring configurations based on two dimensional (2D) square lattice photonic crystal (PC) silicon rods have been investigated by using the two-dimensional (2D) finite-difference time-domain (FDTD) method. The CDF we designed can easily separate the light with four different wavelengths simultaneously with high drop efficiency. Among the CWDM system communication wavelengths these are the wavelengths of 1.471, 1.491, 1.511 and 1.531 μm which are the main communication wavelengths with corresponding dielectric constant of silicon materials as 10.24, 10.59, 11.05 and 12.04 are dropped respectively. It is superior to the CDFs reported before and can be used extensively in optical communication systems.
Keywords :
elemental semiconductors; finite difference time-domain analysis; optical resonators; photonic crystals; silicon; wavelength division multiplexing; 2-D photonic crystal ring resonator; FDTD; ITU.T.694.2 CWDM system; Si; channel drop filter; material rods; optical communication systems; two dimensional square lattice photonic crystal; two-dimensional finite-difference time-domain; variable dielectric constant effect; wavelength 1.471 mum; wavelength 1.491 mum; wavelength 1.511 mum; wavelength 1.531 mum; Dielectric constant; Optical filters; Optical ring resonators; Optical waveguides; Photonic crystals; Refractive index; Resonator filters; FDTD method; channel drop filter; photonic band gap; photonic crystal; photonic crystal ring resonator;
Conference_Titel :
Computer and Communication Technology (ICCCT), 2014 International Conference on
Conference_Location :
Allahabad
Print_ISBN :
978-1-4799-6757-5
DOI :
10.1109/ICCCT.2014.7001501
