Optimized design of an all-optical XOR gate with high contrast ratio and ultra-compact dimensions

Anagha, E. G.; Jeyachitra, R. K.

doi:10.1007/s00340-021-07747-x

Cited by 16 publications

(4 citation statements)

References 39 publications

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“…XOR gate with three input is one of the most crucial components for developing compressors. Using photonic crystal an all-optical XOR gate is developed by Anagha and Jeyachitra [14]. Although the device is exceptionally small dimension, it gives a high contrast ratio.…”

Section: Introductionmentioning

confidence: 99%

Alternative approach to design Dibit-based XOR and XNOR gate

Bosu,

Bhattacharjee

2024

JICS

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In this generation, high-speed communication has very demanding. In this respect, optical communication plays a crucial role in meeting the goal of high-speed communication. With the increasing demands of high-speed communication, huge data processing is also needed. Therefore, we have proposed a design of XOR and XNOR gates using five reflective semiconductor optical amplifiers (RSOA). Our proposed gates are dibit logic-based. To increase the reliability of the devise, we have incorporated this logic scheme. Here, we consider the logic state ‘0’ for the absence of pulse and logic state ‘1’ for the presence of pulse. The dibit logic ‘0 1’ and ‘1 0’ are similar as ‘0’ and ‘1’ in digtal states, respectively. To check its practical feasibility, we have simulated the proposed design in Matlabsoftware and also quality factor, contrast, and extinction ratios are calculated for this design.

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Section: Introductionmentioning

confidence: 99%

Alternative approach to design Dibit-based XOR and XNOR gate

Bosu,

Bhattacharjee

2024

JICS

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“…A recent paper [16] discusses the differences in characteristics between these topologies. Literature has shown that square and hexagonal lattices are commonly used [17,18], and operation can be performed in both linear and nonlinear regimes. Software packages such as RSOFT [19] (which uses the finite difference time domain (FDTD) numerical technique) and COMSOL [20] (i.e., which mainly operate on the finite element method (FEM)) are used to simulate and analyze (Ph.…”

Section: Introductionmentioning

confidence: 99%

Minimum Size Photonic Crystal OR Gate Structure

Mostafa,

Kroush,

El- Rabaie

2024

ERU Research Journal

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Photonic crystal applications and their high performance led them to be considered as a promising research area. The factors that affect their operation are the topology type, and the arrangement of its rod position, and their constructed materials. OR gate is proposed in this paper to be simulated and evaluated. This design is built on a square lattice-photonic crystal construction. Sensitivity analysis, and carefully rod locations are considered to obtain remarkable performance. Minimum size is the main property that distinguishes this design.Based on the simulations, a minimum size of 39.6 μm 2 is obtained. The bit rate of 3.2 Tb/s is calculated for this structure. The considered threshold power level is 0.25. Comparison table is well organized for the recently published photonic crystal OR-gate that is based on ring resonator topology. Finite difference time domain and plane wave expansion method are used to analyze the proposed structure at 1.55μm wavelength to verify ORgate operation. The fabrication methods are discussed and evaluated. As will be shown the size is decreased by around 23% of the recently published paper.

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“…In the other way, the term point defect was used to form cavity-based structures at the prescribed wavelength [54]. The removal of some rods from the structure will yield a waveguide that will help for passing light to reach the output port [55,56].…”

Section: Introductionmentioning

confidence: 99%

Appropriate Photonic Crystal Topology for Appropriate Applications

Mostafa

krosh²,

El-Rabie³

2022

Menoufia Journal of Electronic Engineering Research

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In this paper, different topologies were discussed and their effect on the design of photonic crystal applications was evaluated. They can be classified into four categories (i.e., ring resonator, selfcollimation, waveguide, and cavity-based structures). The figure of merits of each topology and its impact on design modules were explained and compared for two different applications (i.e., half-adder and decoder). Finite difference time domain (FDTD) and plane wave expansion methods are the two numerical approaches that were used to analyze the proposed designs. The truth table for each application was introduced. Comparison tables were organized to discriminate the valued characteristics for each structure. Based on the extracted tables, the appropriate topology can be chosen for the required design application according to the needed characteristic.

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Optimized design of an all-optical XOR gate with high contrast ratio and ultra-compact dimensions

Cited by 16 publications

References 39 publications

Alternative approach to design Dibit-based XOR and XNOR gate

Alternative approach to design Dibit-based XOR and XNOR gate

Minimum Size Photonic Crystal OR Gate Structure

Appropriate Photonic Crystal Topology for Appropriate Applications

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