A New Demultiplexer Based Upon Two-Dimensional Photonic Crystals for Optical Integrated High-Density Circuits

Abstract

ABSTRACT: A new conception of the wavelength division multiplexing on the basis of the two-dimensional photonic crystal was developed. The photonic crystals band structures were investigated in details. The method for the synthesis of the two-channel wavelength division multiplexer on the basis of two dimensional photonic crystals was developed using this method the device was synthesized. The spectral characteristics of the device and its dynamic pulse pattern response were investigated. INTRODUCTION At present photonic crystals (PhC) that are characterized by a periodic variation in a refractive index offer a fertile field for research. The matter is that these crystals have opened up fresh opportunities for controlling wave propagation over the range from millimeter wave to IR and visible spectral region [1,2]. Photonic crystal is an area of great interest in terms of transmitting and processing some information in fully optical systems because a photonic forbidden band originate an radiation is localized in the region of periodic-structure defects. Specifically, from among the critical areas where the PhCs find their use, one can refer not only to low threshold lasers that act as a factor of optical constraint but also to the filtering system for transmitting a definite optical spectrum in optical waveguides and devices intended for wavelength-