Design and analysis of a photonic crystal-based all-optical 3-input OR gate for high-speed optical processing

2021 ◽  
Vol 53 (12) ◽  
Author(s):  
Noonepalle Hari Priya ◽  
Sandip Swarnakar ◽  
Sabbi Vamshi Krishna ◽  
Santosh Kumar
Keyword(s):  
Photonic Crystal ◽  
High Speed ◽  
Optical Processing ◽  
All Optical ◽  
Or Gate

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.

Performance analysis of all optical 2 × 1 multiplexer in 2D photonic crystal structure

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Asghar Askarian
Keyword(s):  
Photonic Crystal ◽  
Optical Waveguides ◽  
Hexagonal Lattice ◽  
Optical Processing ◽  
Switching Speed ◽  
Fast Switching ◽  
Nonlinear Photonic Crystal ◽  
All Optical ◽  
Difference Time ◽  
Optical Structure

Abstract In optical processing systems, multiplexer is used to design optical devices such as arithmetic logic unit (ALU) and shift register (SR). Through this paper, we investigate the application of nonlinear photonic crystal ring resonator (PhCRR) based on nonlinear Kerr effect for realizing an all optical 2 × 1 multiplexer. The structure consists of two PhCRRs and five optical waveguides using hexagonal lattice silicon (Si) rods with a background of air. Performance of all optical 2 × 1 multiplexer is replicated with the help of finite difference time domain (FDTD) procedure at a wavelength of 1571 nm, and simulations presented an ultra-compact optical structure with ultra-fast switching speed.

Realization of high-speed all-optical OR gate using cross-gain modulation

2005 ◽  
Author(s):  
Young Tae Byun ◽  
Kyoung Sun Choi ◽  
Young Min Jhon ◽  
Deok Ha Woo ◽  
Seok Lee ◽  
...  
Keyword(s):  
High Speed ◽  
Gain Modulation ◽  
Cross Gain Modulation ◽  
All Optical ◽  
Or Gate

scholarly journals Ultralow-power all-optical processing of high-speed data signals in deposited silicon waveguides

2012 ◽  
Vol 20 (22) ◽  
pp. 24600 ◽  
Author(s):  
Ke-Yao Wang ◽  
Keith G. Petrillo ◽  
Mark A. Foster ◽  
Amy C. Foster
Keyword(s):  
High Speed ◽  
Optical Processing ◽  
Silicon Waveguides ◽  
All Optical ◽  
High Speed Data ◽  
Ultralow Power

Ultrahigh-efficiency enhancedfour-wave-mixing in Si-Ge-Graphene photonic crystal waveguide

2021 ◽  
Vol 01 ◽  
Author(s):  
Yujun Hou ◽  
Chun Jiang
Keyword(s):  
Signal Processing ◽  
Photonic Crystal ◽  
Conversion Efficiency ◽  
Optical Signal Processing ◽  
Four Wave Mixing ◽  
Optical Signal ◽  
Wave Mixing ◽  
Photonic Crystal Waveguide ◽  
Optical Processing ◽  
All Optical

Background: All-optical processing has a huge superiority in speed and efficiency than traditional optical-electrical-optical signal processing. Four-wave-mixing is an important nonlinear parametric process to achieve all-optical processing. Objective: We proposed the photonic crystal waveguide to enhance the conversion efficiency of four-wave-mixingsignificantly in practical application. Methods: We demonstrate a waveguide composed of silicon with mono-layer graphene coated as core and Si-Ge distributed periodically on both sides as cladding. By the introduction of slow light effect of Si-Ge photonic crystal and the localization effect of graphene, the conversion efficiency of four-wave-mixing has enhanced dramatically. Results: The conversion efficiency can be increased by 16dB compared with silicon waveguide and the maximum efficiency as high as -9.1dB can be achieved in the Si-Ge-Graphene photonic crystal waveguide (SGG-PhCWG).The propagation loss can be decreased as small as 0.032dB/cm. Conclusions: Numerical results of proposed SGG-PhCWGmatch well with nonlinear coupled-mode theory. This configuration offers a new physical mechanism and solution for all-optical signal processing and high efficiency nonlinear nanoscale devices.

On-chip All-optical Processing Based on Photonic Crystal Nanocavities

2008 ◽  
Author(s):  
M. Notomi ◽  
A. Shinya ◽  
T. Tanabe ◽  
E. Kuramochi ◽  
H. Taniyama ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Processing ◽  
All Optical ◽  
On Chip

scholarly journals High-speed all-optical processing for spectrum

2020 ◽  
Vol 29 (1) ◽  
pp. 305
Author(s):  
Xiao Zhang ◽  
Chengming Wang ◽  
Wenxin Zhang ◽  
Shengnan Ai ◽  
Wenchao Liao ◽  
...  
Keyword(s):  
High Speed ◽  
Optical Processing ◽  
All Optical

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.

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