High contrast all-optical logic gates based on 2D nonlinear photonic crystal

Mohebbi, Zahra; Nozhat, Najmeh; Emami, Farzin

doi:10.1016/j.optcom.2015.06.023

Cited by 51 publications

(16 citation statements)

References 14 publications

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“…The results obtained from the simulation of the 'NOT' logic gate is summarized in Table 1. Table 2 compares the functional parameters of our proposed design with previous designs (Kouddad and Naoum 2020;Elhachemi and Rafah 2020;Kordi et al 2020;Mohebbi et al 2015).…”

Section: Simulations and Results Analysis For The Not Logic Gatementioning

confidence: 99%

Performance evaluation of all-optical NOT, XOR, NOR, and XNOR logic gates based on 2D nonlinear resonant cavity photonic crystals

Elhachemi

Naoum

Vigneswaran³

et al. 2021

Opt Quant Electron

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All-optical logic gates are indispensable elements in optical devices and optical computing. Our logic gates are based on bidimensional photonic crystals, where the pillars radius and lattice constant are chosen in such a way that the logic gates are actuated at the wavelength of 1550 nm. The contrast ratios for the NOT, XOR, NOR, and XNOR gates are 26.82 dB, 26.77 dB, 8.34 dB, and 20.17 dB respectively. The response time of the different logic gates is approximately 8.5 ps, resulting in a data transmission rate of 0.117 Tb/s. One of the advantages of our study, from the logic gate NOT we could design all the other gates such as XOR, NOR, and XNOR.

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Section: Simulations and Results Analysis For The Not Logic Gatementioning

confidence: 99%

Performance evaluation of all-optical NOT, XOR, NOR, and XNOR logic gates based on 2D nonlinear resonant cavity photonic crystals

Elhachemi

Naoum

Vigneswaran³

et al. 2021

Opt Quant Electron

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“…PhC-based logic gates are gaining more attention among researchers compared to conventional logic gates due to their compactness, high switching speed, low power consumption, and outstanding integration capabilities into photonic integrated circuits 91 – 97 Several logic functions can be accomplished using optical logic gates. The basic requirements for an optical logic gate to be used in integrated circuits are a low delay time, a high contrast ratio, and a small dimension 98 …”

Section: Applications Of Phcmentioning

confidence: 99%

Fabrication techniques and applications of two-dimensional photonic crystal: history and the present status

2022

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The idea of photonic crystal came to be when E. Yablonovitch and S. John recommended a structure in 1987 having periodic alteration of refractive index in one or multiple directions. Photonic crystals have the potential to manipulate and tailor the flow of light across the crystal, which gives advantage to invent many photonic devices on the microscopic scale having very small footprints. In recent years several articles have been published on the advances of photonic crystal-based structures. This review article mainly focuses on the several fabrication techniques of photonic crystals and their applications in different fields. Several photonic crystalbased structures such as logic gates, optical sensors, polarization beam splitters, and absorbers for solar cells are reviewed in this paper to show recent advancements on this trending topic. Also, a brief review of the different steps of fabrication of photonic crystals and different fabrication methods proposed by researchers is articulated in this paper.

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“…No nonlinear materials were used in the structure, and the size and contrast ratio were equal to 620 µm 2 and 21 dB, respectively. Using a nonlinear effect on photonic crystal nano-resonators, Mohebbi et al designed two structures for NOT, XOR, XNOR, and NAND logic gates [12]. The contrast ratios for NOT and XOR logic gates were 20.7 and 25 dB.…”

Section: Introductionmentioning

confidence: 99%

Proposal of a Cascade Photonic Crystal XOR Logic Gate for Optical Integrated Circuits with Investigation of Fabrication Error and Optical Power Changes

Mohebzadeh-Bahabady

Olyaee

2021

Photonics

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A compact and simple structure is designed to create an all-optical XOR logic gate using a two-dimensional, photonic crystal lattice. The structure was implemented using three waveguides connected by two nano-resonators. The plane wave expansion method was used to obtain the photonic band gap and the finite-difference time-domain method was used to investigate the behavior of the electromagnetic field in the photonic crystal structure. Examining the high contrast ratio and high-speed cascade, all-optical XOR on a chip, the effects of fabrication error and the changes in the input optical power showed that the structure could be used in optical integrated circuits. The contrast ratio and data transfer rate of the cascade XOR logic gate were respectively obtained as 44.29 dB and 1.5 Tb/s. In addition, the designed structure had very small dimensions at 158.65 μm2 and required very low power to operate, which made it suitable for low-power circuits. This structure could also be used as a NOT logic gate. Therefore, an XNOR logic gate can be designed using XOR and NOT logic gates.

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High contrast all-optical logic gates based on 2D nonlinear photonic crystal

Cited by 51 publications

References 14 publications

Performance evaluation of all-optical NOT, XOR, NOR, and XNOR logic gates based on 2D nonlinear resonant cavity photonic crystals

Performance evaluation of all-optical NOT, XOR, NOR, and XNOR logic gates based on 2D nonlinear resonant cavity photonic crystals

Fabrication techniques and applications of two-dimensional photonic crystal: history and the present status

Proposal of a Cascade Photonic Crystal XOR Logic Gate for Optical Integrated Circuits with Investigation of Fabrication Error and Optical Power Changes

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