Design of photonic crystal-based all-optical AND gate using T-shaped waveguide

Shaik, Enaul Haq; Nakkeeran, R.

doi:10.1080/09500340.2015.1111455

Cited by 59 publications

(12 citation statements)

References 30 publications

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“…ER is defined as the ratio of optical power at the output port when it is designated as the logic '1' to that when it is the logic '0' [24,25]. Mathematically the ER can be represented as -ER = 10 log 10 P 1 P 0…”

Section: Extinction Ratiomentioning

confidence: 99%

Impedance matching theory to design an all‐optical AND gate

Mondal

Sen

Prakash

et al. 2018

IET Optoelectronics

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Section: Extinction Ratiomentioning

confidence: 99%

Impedance matching theory to design an all‐optical AND gate

Mondal

Sen

Prakash

et al. 2018

IET Optoelectronics

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“…Optical logic gates are the major components used for signal processing in optical communication. In recent past, various optical logic gates like AND, NOT, OR, NOR and NAND [1][2][3][4][5][6], logic devices like adders [7,8], multiplexer, demultiplexer [9][10][11], decoders [12,13], filters [14] and counters [15] have been demonstrated. Complex structures such as flip-flops are constructed using combination of these logic gates.…”

Section: Introductionmentioning

confidence: 99%

Design of two-dimensional photonic crystal based ultra compact optical RS flip-flop

Soma

Sonth²,

Gowre³

2021

Photon Netw Commun

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The presented research deals with designing of a new ultra compact all-optical RS flip-flop on a two-dimensional (2-D) hexagonal photonic crystal platform. The flip-flop is designed by using two NOR gates, photonic crystal waveguides, four silicon ring resonators, four input ports and two output ports. The designed flip-flop structure has hexagonal silicon rods in the air host with a lattice constant a of 630 nm. Si rods have a radius of 0.2a and operating waveleangth of 1550 nm. The novel design provides proper distinction between logic 1 and logic 0 at the output by giving 8.7 dB and 4 dB contrast ratio at Q and Qbar output, respectively. Furthermore, uncomplicated structure resulting in small dimension of 28 μm * 28 μm makes it appropriate for optical integrated circuit in optical networks. FDTD method is used to model the proposed structure and simulated using RSoft FullWAVE simulator tool.

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“…For implementing the next generation all optical data processing systems and networks one needs different kinds of logic gates (Goudarzi et al 2016;Mohebbi et al 2015;Salmanpour et al 2015;Shaik and Rangaswamy 2016), and other optical digital circuits (Daghooghi et al 2019;Haddadan and Soroosh 2018;Zhao et al 2019). All of the required devices can be designed and realized using photonic crystals (PhCs).…”

Section: Introductionmentioning

confidence: 99%

Proposal for all optical comparator using nonlinear PhC-based cavities

Pishkhani

2021

Preprint

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In this paper an all optical comparator was designed and simulated. The proposed structure works using nonlinear threshold switching that was implemented by application of nonlinear resonant cavities. X and Y are the input ports of the proposed structure using different combination of these input ports one can control that which bias port can be connected to its corresponding output port. O1 is ON when X is ON and Y is OFF, O2 is ON when Y is ON and X is OFF, and O3 is ON when both X and Y have similar states.

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Design of photonic crystal-based all-optical AND gate using T-shaped waveguide

Cited by 59 publications

References 30 publications

Impedance matching theory to design an all‐optical AND gate

Impedance matching theory to design an all‐optical AND gate

Design of two-dimensional photonic crystal based ultra compact optical RS flip-flop

Proposal for all optical comparator using nonlinear PhC-based cavities

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