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

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.

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

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.

All optical NAND gate based on nonlinear photonic crystal ring resonators

Optik ◽  
2017 ◽  
Vol 130 ◽  
pp. 1214-1221 ◽  
Author(s):  
Hamed Alipour-Banaei ◽  
Somaye Serajmohammadi ◽  
Farhad Mehdizadeh
Keyword(s):  
Photonic Crystal ◽  
Ring Resonators ◽  
Nand Gate ◽  
Nonlinear Photonic Crystal ◽  
All Optical

All-optical AND/OR/NOT logic gates based on photonic crystal ring resonators

2016 ◽  
Vol 9 (4) ◽  
pp. 578-584 ◽  
Author(s):  
Ashkan Pashamehr ◽  
Mahdi Zavvari ◽  
Hamed Alipour-Banaei
Keyword(s):  
Photonic Crystal ◽  
Logic Gates ◽  
Ring Resonators ◽  
All Optical

An All Optical NAND Gate Using Nonlinear Photonic Crystal Ring Resonators

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Ehsann Barmala
Keyword(s):  
Photonic Crystal ◽  
Optical Communications ◽  
Delay Time ◽  
Ring Resonators ◽  
Nand Gate ◽  
Combinational Circuits ◽  
Nonlinear Photonic Crystal ◽  
Novel Structure ◽  
All Optical ◽  
Universal Gate

AbstractOptical NAND gate is a universal gate which can be used for implementing different kinds of combinational circuits without using other gates. Due to significance of optical NAND gates in the optical communications, in this paper we proposed a novel structure for designing an all optical NAND gate based on photonic crystal structures. The proposed structure was designed using threshold switching mechanism which can be implemented using nonlinear ring resonators. In the proposed structure delay time is about 2.3 ps.

Sign in / Sign up

Export Citation Format

Share Document