Simple realization of all-optical high-speed (40, 80 and 160 Gb s−1) XOR and OR logic gates using LiNbO3waveguides

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.

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.74.39 ◽

2009 ◽

Vol 74 ◽

pp. 39-43 ◽

Cited By ~ 1

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.

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

10.21203/rs.3.rs-1054031/v1 ◽

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.

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

10.20944/preprints201706.0101.v1 ◽

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.

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All-optical high speed logic gates using SOA

Optics Communications ◽

10.1016/j.optcom.2012.01.018 ◽

2012 ◽

Vol 285 (9) ◽

pp. 2289-2292 ◽

Cited By ~ 16

Author(s):

Mahdi Sahafi ◽

Ali Rostami ◽

Ali Sahafi

Keyword(s):

High Speed ◽

Logic Gates ◽

All Optical

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High-speed all-optical NAND/AND logic gates using four-wave mixing Bragg scattering

Optics Letters ◽

10.1364/ol.41.003320 ◽

2016 ◽

Vol 41 (14) ◽

pp. 3320 ◽

Cited By ~ 14

Author(s):

Kangmei Li ◽

Hong-Fu Ting ◽

Mark A. Foster ◽

Amy C. Foster

Keyword(s):

High Speed ◽

Logic Gates ◽

Four Wave Mixing ◽

Wave Mixing ◽

Bragg Scattering ◽

All Optical

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Optimization of an All-Optical Photonic Crystal NOT Logic Gate Using Switch Based on Nonlinear Kerr Effect and Ring Resonator

Sensor Letters ◽

10.1166/sl.2020.4200 ◽

2020 ◽

Vol 18 (2) ◽

pp. 89-94 ◽

Cited By ~ 2

Author(s):

Elhachemi Kouddad ◽

Rafah Naoum

Keyword(s):

Photonic Crystal ◽

Kerr Effect ◽

High Speed ◽

Logic Gate ◽

Contrast Ratio ◽

Logic Gates ◽

Square Lattice ◽

All Optical ◽

Easy Integration ◽

Nano Crystal

In this paper, the use of the Kerr effect in a two-dimensional square lattice of In0.82Ga0.18As0.40P0.60 rods in photonic crystal proposes an ultra-compact all-optical NOT logic gate. The main device operation is based on the concept of all the optical switches. In our work, the novelty lies in the design of a new simple nonlinear ring based on the combination of silicon nano-crystal "Si–Nc/In0.82Ga0.18As0.40P0.60" materials that can be used. The contrast ratio and delay time for the proposed NOT logic gate are respectively 25.52 dB and 0.66 ps. The structure size is equal to 168 μm2. Designed logic gates are characterized by low energy consumption, high-speed response, compactness and easy integration. All simulations are based on Non-Linear-Finite Difference Time Domain (NL-FDTD) and Plane Wave Expansion (PWE) numerical methods.

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