A novel proposal for an all optical combined half adder/subtractor

Pakrai, F.; Soroosh, Mohammad; Ganji, Jabbar

doi:10.1007/s11082-022-03898-z

Cited by 6 publications

(1 citation statement)

References 28 publications

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“…In all optical logic processing still there are many unsolved challenges [2]. All optical logic implementations includes simple logic operations like OR, NOT, XOR etc [3], half adder [4], full adder [5], comparator [6], flip-flops [7], parity generator-checker [8], code converters [9], programmable logic array [10], canonical logic unit(CLU) [2] etc. Among these CLU and PLA together is very effective for implementation of different complex logic processors for high speed optical processing.…”

Section: Introductionmentioning

confidence: 99%

All optical Majority gate using Quantum dot SOA based Tera hertz Optical Asymmetric Demultiplexer (TOAD)

Mukherjee

2023

Preprint

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This paper describes design and analysis of all-optical majority gate. Modifications of the design in comparison to conventional design using three AND gates have improved the performance as far as optical majority gate is concerned. The control power the TOAD is optimized by calculating different performance indicating parameters and noise characteristics is also investigated. Optimized values of extinction ratio (~16 dB), amplitude modulation (~0.1dB), quality factor (~20 dB), contrast ratio (~20 dB), and relative eye opening (>97%) show overall efficient performance of the device. The operating speed of the device is 1Tb/s.

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Section: Introductionmentioning

confidence: 99%

All optical Majority gate using Quantum dot SOA based Tera hertz Optical Asymmetric Demultiplexer (TOAD)

Mukherjee

2023

Preprint

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Ultra-compact and low delay time all optical half adder based on photonic crystals

Parandin

2023

Opt Quant Electron

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Photonic crystals are exible structures that can be used to design a variety of optical devices. One of the important purposes of using photonic crystals is to use them in optical integrated circuits. To design and implement these devices as integrated circuits, they must have both small dimensions and a simple structure. In this paper, an optical half adder is designed using photonic crystals. One of the features of this half adder is its small size. Also, a square lattice has been used in designing this structure, which is simpler than other structures. In designing this structure, it has been tried that the power values in high and low logic modes have a large difference to reduce their detection error at the output. For the sum and carry outputs, the obtained contrast ratio in the designed half adder is 15.4dB and 7.4dB, respectively.The small size of this structure and the use of simple point defects, and their small number have caused the maximum delay time of this structure to be reduced to 0.07ps.

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Photonic crystal based integrated system for half adder and half subtractor operations

Hazra,

Mukhopadhyay

2024

Opt Quant Electron

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A novel proposal for an all optical combined half adder/subtractor

Cited by 6 publications

References 28 publications

All optical Majority gate using Quantum dot SOA based Tera hertz Optical Asymmetric Demultiplexer (TOAD)

All optical Majority gate using Quantum dot SOA based Tera hertz Optical Asymmetric Demultiplexer (TOAD)

Ultra-compact and low delay time all optical half adder based on photonic crystals

Photonic crystal based integrated system for half adder and half subtractor operations

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