All-optical half-subtractor with low-time delay based on two-dimensional photonic crystals

Abstract In order to rapidly process information, high-speed processors are required. Optical instruments are appropriate for optical processors because of the high speed of information transference. In order to design optical processors, a structure that has the ability to integrate is required. Photonic crystals are suitable structures that can be used to design and implement different kinds of optical instruments. In this paper, an optical half-subtractor has been designed, based on two-dimensional photonic crystals. Owing to its small size and simple design, this half-subtractor can be used in optical integrated circuits. The very low-time delay of this half-subtractor is responsible for its high bit-rate.

[1]  Mohammad Mehdi Karkhanehchi,et al.  Terahertz all-optical NOR and AND logic gates based on 2D photonic crystals , 2017 .

[2]  M. Gupta,et al.  All-optical NOT and AND gates using counter propagating beams in nonlinear Mach–Zehnder interferometer made of photonic crystal waveguides , 2016 .

[3]  Hamed Alipour-Banaei,et al.  All-optical AND/OR/NOT logic gates based on photonic crystal ring resonators , 2016 .

[4]  Steven G. Johnson,et al.  Photonic Crystals: Molding the Flow of Light , 1995 .

[5]  Jongho Lee,et al.  Coupled-defect photonic crystal vertical cavity surface emitting lasers , 2003 .

[6]  A. Rostami,et al.  Correspondence Between Effective Mode Area and Dispersion Variations in Defected Core Photonic Crystal Fibers , 2011, Journal of Lightwave Technology.

[7]  E. Yablonovitch.  Photonic crystals: semiconductors of light. , 2001, Scientific American.

[8]  Anas A. Alkanoo,et al.  Photonic crystal as a refractometric sensor operated in reflection mode , 2017 .

[9]  Hai‐feng Zhang,et al.  Design of ultra-compact all optical half subtracter based on self-collimation in the two-dimensional photonic crystals , 2015 .

[10]  Xiangbo Yang,et al.  Larger Absolute Band Gaps in Two-Dimensional Photonic Crystals Fabricated by a Three-Order-Effect Method , 2010 .

[11]  A. Sivanantha Raja,et al.  Photonic crystal-based optical filter: a brief investigation , 2017, Photonic Network Communications.

[12]  Mohammad Ali Mansouri-Birjandi,et al.  Concurrent implementation of all-optical half-adder and AND & XOR logic gates based on nonlinear photonic crystal , 2013 .

[13]  Bin Wu,et al.  Design of all-optical logic gates avoiding external phase shifters in a two-dimensional photonic crystal based on multi-mode interference for BPSK signals , 2014 .

[14]  Chunbo Yang,et al.  All-optical NOR and NAND gates based on photonic crystal ring resonator , 2014 .

[15]  Zhengbiao Ouyang,et al.  All-optical half adder based on cross structures in two-dimensional photonic crystals. , 2008, Optics express.

[16]  Chien-Jang Wu,et al.  Analysis of defect mode in a dielectric photonic crystal containing ITO defect , 2014 .

[17]  K. Fasihi,et al.  Design and simulation of linear logic gates in the two-dimensional square-lattice photonic crystals , 2016 .

[18]  Santosh Kumar,et al.  All-Optical Half-Adder Circuit Based on Beam Interference Principle of Photonic Crystal , 2017 .

[19]  Mohammad Mehdi Karkhanehchi,et al.  Design of an all optical half-adder based on 2D photonic crystals , 2017, Photonic Network Communications.

[20]  A. Mir,et al.  All-optical XOR and OR logic gates based on line and point defects in 2-D photonic crystal , 2016 .