All-optical logic XOR gate for high-speed CSRZ-DPSK signals based on cSFG/DFG in PPLN waveguide

2010 ◽  
Vol 46 (4) ◽  
pp. 288 ◽  
Author(s):  
J. Wang ◽  
J. Sun
Keyword(s):  
High Speed ◽  
Optical Logic ◽  
Xor Gate ◽  
All Optical

scholarly journals High Speed All Optical Logic Operations Utilizing the Protein Bacteriorhodopsin

2014 ◽  
Vol 106 (2) ◽  
pp. 421a
Author(s):  
László Fábián ◽  
Anna Mathesz ◽  
Sándor Valkai ◽  
Daniel Alexandre ◽  
Paulo V.S. Marques ◽  
...  
Keyword(s):  
High Speed ◽  
Optical Logic ◽  
All Optical ◽  
Logic Operations

High Speed All Optical Logic Gates Using Binary Phase Shift Keyed Signal Based On QD-SOA

2015 ◽  
Vol 24 (03n04) ◽  
pp. 1550005 ◽  
Author(s):  
Wenbo Li ◽  
Hongyu Hu ◽  
Xiang Zhang ◽  
Niloy K. Dutta
Keyword(s):  
Phase Shift ◽  
High Speed ◽  
Logic Gates ◽  
Boolean Logic ◽  
Rate Equations ◽  
Hole Burning ◽  
Spectral Hole Burning ◽  
Optical Logic ◽  
Binary Phase ◽  
All Optical

A scheme to realize all-optical Boolean logic functions, XOR, AND and NAND operations using binary phase shift keyed (BPSK) signal based on quantum-dot semiconductor optical amplifiers (QD-SOA) has been designed and studied. Nonlinear dynamics including carrier heating and spectral hole-burning are taken into account together with the rate equations. We demonstrate XOR, AND and NAND operations at 250Gb/s using a pair of QD-SOA Mach-Zehnder interferometers. Results show that this scheme is suitable for high speed all-optical Boolean logic operations and can improve the output quality comparing with the system using on-off-keyed (OOK) signal.

All-Optical Signal Processing Based on Nonlinear Effects in Semiconductor Optical Amplifiers

2009 ◽  
Vol 74 ◽  
pp. 39-43 ◽  
Author(s):  
Jian Wu ◽  
Min Xue Wang ◽  
Bing Bing Wu
Keyword(s):  
Signal Processing ◽  
High Speed ◽  
Optical Signal Processing ◽  
Optical Network ◽  
Nonlinear Effects ◽  
Logic Gates ◽  
Optical Signal ◽  
Optical Logic ◽  
All Optical ◽  
Optical Time

In this paper, we report our recent studies on developing nonlinear techniques based on a single SOA for all-optical signal processing at high-speed, with a focus on simple configurations employing commercial SOAs for several key all-optical network applications. Our researches are based on nonlinear polarization rotation (NPR), four-wave mixing (FWM) and cross-phase modulation (XPM) effects in a single SOA. We propose and demonstrate applications of the nonlinear techniques in all-optical logic gates, multi-function format coversion, tunable Lyot birefringent filter and multi-channel optical time division multiplexed (OTDM) demultiplexing.

scholarly journals Enhanced All-Optical Y-Shaped Plasmonic OR, NOR And NAND Gate Models, Analyses, And Simulation For High Speed Computations

2021 ◽  
Author(s):  
Ipshitha Charles ◽  
Alluru Sreev ◽  
SabbiVamshi Krishna ◽  
Sandip Swarnakar ◽  
Santosh Kumar
Keyword(s):  
Integrated Circuits ◽  
High Speed ◽  
Extinction Ratio ◽  
Logic Gates ◽  
Nand Gate ◽  
Optical Logic ◽  
Metal Insulator Metal ◽  
All Optical ◽  
A New Technique ◽  
Complex Circuits

Abstract In this digital era, all-optical logic gates (OLGs) proved its effectiveness in execution of high-speed computations. A unique construction of an all-optical OR, NOR, NAND gates based on the notion of power combiner employing metal–insulator–metal (MIM) waveguide in the Y-shape in a minimal imprint of 6.2 µm × 3 µm is presented and the structure is evaluated by finite-difference time-domain (FDTD) technique. The insertion loss (IL) and extinction-ratio (ER) for proposed model are 6 dB and 27.76 dB for NAND gate, 2 dB and 20.35 dB for NOR gate and 6 dB and 24.10 dB respectively. The simplified model is used in the construction of complex circuits to achieve greater efficiency, which contributes to the emergence of a new technique for designing plasmonic integrated circuits.

scholarly journals High Speed All-Optical Logic Gate Using QD-SOA and its Application

2017 ◽  
Author(s):  
Shuai Zhao ◽  
Hongyu Hu
Keyword(s):  
High Speed ◽  
Logic Gate ◽  
Logic Gates ◽  
Boolean Logic ◽  
Hole Burning ◽  
Spectral Hole Burning ◽  
Optical Logic ◽  
Carrier Heating ◽  
Optical Logic Gates ◽  
All Optical

The scheme to realize high speed (~250Gb/s) all-optical Boolean logic gates using semiconductor optica amplifiers with quantum-dot (QD-SOA) is introduced and analyzed in this review. Numerical simulation method was presented by solving the rate equation and taking into account nonlinear dynamics including carrier heating and spectral hole-burning. Binary phase shift keyed (BPSK) signal and on-off keyed signal are used to generate high speed all-optical logic gates. The applications based on all-optical logic gates such as, all-optical latches, pseudo random bit sequence (PRBS) generation and all-optical encryption, are also discussed in this review. Results show that the scheme based on QD-SOA is a promising method for the realization of high speed all-optical communication system in the future.

scholarly journals High-speed all-optical logic gate using QD-SOA and its application

2017 ◽  
Vol 4 (1) ◽  
pp. 1388156 ◽  
Author(s):  
Hongyu Hu ◽  
Xiang Zhang ◽  
Shuai Zhao ◽  
Lifu Zhang
Keyword(s):  
High Speed ◽  
Logic Gate ◽  
Optical Logic ◽  
All Optical ◽  
Optical Logic Gate
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