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

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 Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Sicong Wang ◽  
Chen Wei ◽  
Yuanhua Feng ◽  
Hongkun Cao ◽  
Wenzhe Li ◽  
...  
Keyword(s):  
Magnetization Reversal ◽  
Energy Efficient ◽  
High Speed ◽  
Data Transfer ◽  
Laser Pulses ◽  
Time Resolved ◽  
All Optical ◽  
Fs Laser ◽  
High Speed Data ◽  
Natural Way

AbstractAlthough photonics presents the fastest and most energy-efficient method of data transfer, magnetism still offers the cheapest and most natural way to store data. The ultrafast and energy-efficient optical control of magnetism is presently a missing technological link that prevents us from reaching the next evolution in information processing. The discovery of all-optical magnetization reversal in GdFeCo with the help of 100 fs laser pulses has further aroused intense interest in this compelling problem. Although the applicability of this approach to high-speed data processing depends vitally on the maximum repetition rate of the switching, the latter remains virtually unknown. Here we experimentally unveil the ultimate frequency of repetitive all-optical magnetization reversal through time-resolved studies of the dual-shot magnetization dynamics in Gd27Fe63.87Co9.13. Varying the intensities of the shots and the shot-to-shot separation, we reveal the conditions for ultrafast writing and the fastest possible restoration of magnetic bits. It is shown that although magnetic writing launched by the first shot is completed after 100 ps, a reliable rewriting of the bit by the second shot requires separating the shots by at least 300 ps. Using two shots partially overlapping in space and minimally separated by 300 ps, we demonstrate an approach for GHz magnetic writing that can be scaled down to sizes below the diffraction limit.

Demonstration of a noble all optical D-type flip flop system for high speed data processing

2017 ◽  
Vol 59 (5) ◽  
pp. 1042-1045 ◽  
Author(s):  
Wei Lu ◽  
Alejandro Velazquez ◽  
Ghang-Ho Lee
Keyword(s):  
Data Processing ◽  
High Speed ◽  
Flip Flop ◽  
All Optical ◽  
High Speed Data

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.

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

Integrated Multi-Bit All-Optical NOR Gate for High Speed Data Processing

2013 ◽  
Vol 31 (8) ◽  
pp. 1178-1184 ◽  
Author(s):  
Miguel Cabezon ◽  
Asier Villafranca ◽  
Juan J. Martinez ◽  
David Izquierdo ◽  
Ignacio Garces
Keyword(s):  
Data Processing ◽  
High Speed ◽  
All Optical ◽  
High Speed Data ◽  
Nor Gate

Devices, communication techniques and networks for all optical communication: research issues

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Vikas Kaushik ◽  
Himanshi Saini
Keyword(s):  
Optical Networks ◽  
Communication Networks ◽  
Optical Communication ◽  
High Speed ◽  
Research Issues ◽  
Communication Techniques ◽  
Communication Technique ◽  
All Optical ◽  
High Speed Data ◽  
Further Development

Abstract The characteristics of all optical networks such as high speed, data carrying capacity and transparency make them suitable for emerged networks domain. This paper presents an overview of research challenges in the field of all optical communication networks. Various subdomains of an all optical system, for example device-level designs, communication technique-level designs and network-level designs have been extensively investigated and presented in this paper. Further, the related research issues under each category of these domains have been discussed. These issues constitute the basic criterion for further development in all optical domain.

Sign in / Sign up

Export Citation Format

Share Document