Title :
Investigation of optical wavelength division de-multiplexer based on two dimensional photonic crystal structure
Author :
Sharma, Ritu ; Kumar, Govind ; Dusad, Lalit Kumar
Author_Institution :
Dept. of ECE, MNIT Jaipur, Jaipur, India
Abstract :
In this paper, the design & performance of two dimensional (2-D) photonic crystal (PhC) wavelength division demultiplexer is investigated using finite difference time domain (FDTD) method. The photonic band gap (PBG) is calculated by plane wave expansion (PWE) method. The reported design provides two de-multiplexed signals one at wavelength 1.31μm and another at wavelength 1.55μm which belong to the most popular II and III windows with respect to low attenuation and dispersion losses in optical communication system. The device is investigated by varying the design parameters. This de-multiplexer is useful for wavelength division de-multiplexing (WDDM) applications. This may serve as key component in integrated nanophotonic circuits. The de-multiplexer is designed by two dimensional photonic crystal having 14×17 dielectric rods suspended in the air background. The Q factor of this de-multiplexer is obtained about 224 and 250 for wavelengths 1.31μm and 1.55μm respectively.
Keywords :
demultiplexing equipment; dielectric devices; finite difference time-domain analysis; nanophotonics; optical communication; photonic band gap; photonic crystals; wavelength division multiplexing; 2D photonic crystal structure; FDTD method; PBG; PWE method; WDDM; design parameters; dielectric rods; dispersion losses; finite difference time domain method; integrated nanophotonic circuits; low attenuation; optical communication system; optical wavelength division demultiplexer; photonic band gap calculation; plane wave expansion method; Optical filters; Optical resonators; Photonic band gap; Refractive index; Wavelength division multiplexing; FDTD; PWE method; Photonic crystal; Q factor; WDDM;
Conference_Titel :
Industrial and Information Systems (ICIIS), 2014 9th International Conference on
Conference_Location :
Gwalior
Print_ISBN :
978-1-4799-6499-4
DOI :
10.1109/ICIINFS.2014.7036625
