All optical NAND/NOR and majority gates using nonlinear photonic crystal ring resonator

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hassan Mamnoon-Sofiani ◽  
Sahel Javahernia
Keyword(s):  
Photonic Crystal ◽  
Ring Resonator ◽  
Logic Gates ◽  
Building Blocks ◽  
Optical Data ◽  
Optical Logic ◽  
Optical Logic Gates ◽  
Nonlinear Photonic Crystal ◽  
All Optical ◽  
Photonic Crystal Ring Resonator

Abstract All optical logic gates are building blocks for all optical data processors. One way of designing optical logic gates is using threshold switching which can be realized by combining an optical resonator with nonlinear Kerr effect. In this paper we showed that a novel structure consisting of nonlinear photonic crystal ring resonator which can be used for realizing optical NAND/NOR and majority gates. The delay time of the proposed NAND/NOR and majority gates are 2.5 ps and 1.5 ps respectively. Finite difference time domain and plane wave expansion methods were used for simulating the proposed optical logic gates. The total footprint of the proposed structure is about 988 μm2.

scholarly journals Functional all-optical logic gates for true time-domain signal processing in nonlinear photonic crystal waveguides

2020 ◽  
Vol 28 (12) ◽  
pp. 18317
Author(s):  
Vakhtang Jandieri ◽  
Ramaz Khomeriki ◽  
Tornike Onoprishvili ◽  
Douglas H. Werner ◽  
Jamal Berakdar ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Time Domain ◽  
Logic Gates ◽  
Photonic Crystal Waveguides ◽  
Optical Logic ◽  
Optical Logic Gates ◽  
Time Domain Signal ◽  
Nonlinear Photonic Crystal ◽  
All Optical ◽  
True Time

Ultrafast all optical XOR gate using photonic crystal-based nonlinear ring resonators

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Alireza Shamsi
Keyword(s):  
Photonic Crystal ◽  
Contrast Ratio ◽  
Logic Gates ◽  
Optical Devices ◽  
Ring Resonators ◽  
Optical Data ◽  
Optical Logic ◽  
Xor Gate ◽  
Optical Logic Gates ◽  
All Optical

Abstract Optical logic gates can play crucial roles for designing all optical data processing circuits. Photonic crystals are one of the suitable platforms that can be used for designing all optical devices. In this paper an optical XOR gate was designed using nonlinear ring resonators. The proposed structure works are based on threshold switching. The working wavelength and the switching threshold of the resonators are 1550 nm and 1.8 W/μm2, respectively. The rise time is about 1 ps and the ON/OFF contrast ratio is about 16 dB.

Concave Rectangle Photonic Crystal Ring Resonator for Ultra-Fast All-Optical Modulation

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Sana Rebhi ◽  
Radhouene Massoudi ◽  
Monia Najjar
Keyword(s):  
Photonic Crystal ◽  
Insertion Loss ◽  
Ring Resonator ◽  
Extinction Ratio ◽  
Input Power ◽  
Light Signal ◽  
Optical Modulator ◽  
Nonlinear Photonic Crystal ◽  
All Optical ◽  
Photonic Crystal Ring Resonator

AbstractIn this paper, an ultra-fast all-optical modulator, based on a new shape of nonlinear photonic crystal ring resonator, is designed and studied. Numerical methods such as plane wave expansion (PWE) and finite-difference time domain (FDTD) are used to perform simulations. The modulation technique consists of carrier light controlling by means of input light signal and Kerr effect. The investigation of extinction ratio and insertion loss within the carrier input power shows that the choice of 0.7 W is the optimal value of that power to ensure the tradeoff between both characteristics. The suggested modulator demonstrates an excellent extinction ratio about 20.8018, a very low insertion loss of −13.98 and a short switching time about 13.4 ps. According to the obtained results, the modulator can be considered as an ultra-fast and ultra-compact optical component.

An Optical Half Adder Using Nonlinear Ring Resonator Based on Photonic Crystal

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohsen Ebrahimi ◽  
Sahel Javahernia
Keyword(s):  
Photonic Crystal ◽  
Time Delay ◽  
Ring Resonator ◽  
Optical Power ◽  
Logic Gates ◽  
Ring Resonators ◽  
Optical Logic ◽  
Nonlinear Photonic Crystal ◽  
Half Adder ◽  
Glass Rods

AbstractNonlinear photonic crystal ring resonators are suitable mechanisms that can be used for designing optical logic gates and digital structures. In this paper, we designed two nonlinear resonant rings by adding doped glass rods inside the photonic crystal ring resonator. An optical half adder was designed using these nonlinear photonic crystal ring resonators. We used plane wave expansion and finite difference time domain methods to simulate our optical half adder. The simulations show that when one of the input ports is ON, the normalized optical power at the S is about 90 %. The time delay in this case is 7 ps. Also when both the input ports are ON, the normalized optical power at the C is about 155 %. The time delay in this case is 8 ps.

Design and Simulation of Two-Dimensional Photonic Crystal All-Optical Logic Gates

2019 ◽  
Vol 56 (18) ◽  
pp. 182301
Author(s):  
刘振 Zhen Liu ◽  
吴蓉 Rong Wu ◽  
严清博 Qingbo Yan ◽  
吴小所 Xiaosuo Wu
Keyword(s):  
Photonic Crystal ◽  
Logic Gates ◽  
Two Dimensional ◽  
Optical Logic ◽  
Optical Logic Gates ◽  
Dimensional Photonic Crystal ◽  
All Optical ◽  
Two Dimensional Photonic Crystal

Realization of All-Optical Logic Gates in a Triangular Triple-Core Photonic Crystal Fiber

2013 ◽  
Vol 31 (5) ◽  
pp. 731-739 ◽  
Author(s):  
A. G. Coelho ◽  
M. B. C. Costa ◽  
A. C. Ferreira ◽  
M. G. da Silva ◽  
M. L. Lyra ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Logic Gates ◽  
Optical Logic ◽  
Optical Logic Gates ◽  
Crystal Fiber ◽  
All Optical
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