A high speed all optical half adder using photonic crystal based nonlinear ring resonators

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Alireza Shamsi
Keyword(s):  
Photonic Crystal ◽  
Rise Time ◽  
High Speed ◽  
Ring Resonators ◽  
Optical Intensity ◽  
Working Mechanism ◽  
Central Wavelength ◽  
Half Adder ◽  
All Optical ◽  
Doped Glass

Abstract In this paper a high speed optical half adder is designed. The working mechanism of the proposed structure is based on optical threshold switching. Three nonlinear ring resonators are used for this purpose. These nonlinear ring resonators are created by adding doped glass based rods inside the resonant rings. The proposed structure works with optical waves with central wavelength and optical intensity equal to 1550 nm and 1 W/μm2 respectively. The rise time is 2 ps.

An all optical photonic crystal half adder suitable for optical processing applications

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hamed Azhdari ◽  
Sahel Javahernia
Keyword(s):  
Photonic Crystal ◽  
Optical Waveguides ◽  
High Speed ◽  
Building Blocks ◽  
Optical Signal ◽  
Ring Resonators ◽  
Optical Processing ◽  
Nonlinear Photonic Crystal ◽  
Half Adder ◽  
All Optical

Abstract Increasing the speed of operation in all optical signal processing is very important. For reaching this goal one needs high speed optical devices. Optical half adders are one of the important building blocks required in optical processing. In this paper an optical half adder was proposed by combining nonlinear photonic crystal ring resonators with optical waveguides. Finite difference time domain method wase used for simulating the final structure. The simulation results confirmed that the rise time for the proposed structure is about 1 ps.

scholarly journals All optical binary ASK demodulator using photonic crystal based nonlinear ring resonator

2020 ◽  
Vol 50 (1) ◽  
Author(s):  
Mahsa Narimanzadeh ◽  
Alireza Andalib
Keyword(s):  
Photonic Crystal ◽  
Ring Resonator ◽  
Optical Intensity ◽  
Plane Wave Expansion ◽  
Working Mechanism ◽  
All Optical ◽  
Shift Keying ◽  
Simulation Results ◽  
Optical Behavior ◽  
Difference Time

In this paper we will propose and design an all optical amplitude shift keying demodulator using a photonic crystal based nonlinear ring resonator. The proposed structure will be designed such that it can generate digital 0 and 1 based on the amplitude of the input signal. The working mechanism is based on controlling the optical behavior of the resonant ring using optical intensity. The proposed structure was simulated using plane wave expansion and finite difference time domain methods. The simulation results show that the rise and fall times for the proposed structure are 0.5 and 0.1 ps, respectively.

scholarly journals A Novel Design of All-optical Full-adder Using Nonlinear X-shaped Photonic Crystal Resonators

2021 ◽  
Author(s):  
Saleh Naghizade ◽  
Hamed Saghaei
Keyword(s):  
Photonic Crystal ◽  
High Speed ◽  
Light Propagation ◽  
Full Adder ◽  
All Optical ◽  
High Speed Data ◽  
Doped Glass ◽  
Photonic Band ◽  
Novel Design ◽  
Incoming Light

Abstract This paper proposes a new all-optical full-adder design based on nonlinear X-shaped photonic crystal (PhC) resonators. The PhC-based full-adder consists of three input ports, two X-shaped PhC resonators (X-PCRs), and two output ports. The dielectric rods made of silicon and nonlinear rods composed of doped glass are used to design the X-PCRs. Two well-known plane wave expansion and finite difference time domain methods are applied to study and analyze the photonic band structure and light propagation inside the PhC, respectively. Our numerical results demonstrate when the incoming light intensity increases, the nonlinear Kerr effect appears and manages the direction of light propagation inside the structure. The maximum time delay and footprint of the proposed full-adder are about 2.5ps and 663 μm2, making it an appropriate adder for high-speed data processing systems.

An ultrafast all-optical half adder using nonlinear ring resonators in photonic crystal microstructure

2020 ◽  
Vol 52 (2) ◽  
Author(s):  
Mojtaba Hosseinzadeh Sani ◽  
Afsaneh Asgariyan Tabrizi ◽  
Hamed Saghaei ◽  
Rouhollah Karimzadeh
Keyword(s):  
Photonic Crystal ◽  
Ring Resonators ◽  
Half Adder ◽  
All Optical

Design and Simulation of a Fast All-Optical Modulator Based on Photonic Crystal Using Ring Resonators

Silicon ◽  
2021 ◽  
Author(s):  
Mohammad Moradi ◽  
Masoud Mohammadi ◽  
Saeed Olyaee ◽  
Mahmood Seifouri
Keyword(s):  
Photonic Crystal ◽  
Ring Resonators ◽  
Optical Modulator ◽  
All Optical

A 2*4 all optical decoder switch based on photonic crystal ring resonators

2014 ◽  
Vol 62 (6) ◽  
pp. 430-434 ◽  
Author(s):  
Hamed Alipour-Banaei ◽  
Farhad Mehdizadeh ◽  
Somaye Serajmohammadi ◽  
Mahdi Hassangholizadeh-Kashtiban
Keyword(s):  
Photonic Crystal ◽  
Ring Resonators ◽  
All Optical ◽  
Optical Decoder

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.

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