All-optical NOT and AND gates using counter propagating beams in nonlinear Mach–Zehnder interferometer made of photonic crystal waveguides

Gupta, Man Mohan; Medhekar, Sarang

doi:10.1016/j.ijleo.2015.10.176

Cited by 59 publications

(10 citation statements)

References 31 publications

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“…Several structures have been designed by researchers on PhC to perform different logic operations; such as PhC-based waveguides, 92 – 94 , 106 , 107 microring resonator structures 105 , 108 – 110 Mach–Zehnder interferometer structure, 111 , 112 coupled waveguide-based structure, 91 , 113 PhC based semiconductor optical amplifier (SOA) structure 114 , 115 and many others.…”

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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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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“…where k 0 = n 0 ω/c is the propagation constant in low intensity conditions and ∆k = n 2 Iω/c refers to the changes of propagation constant in high intensity light [8,10,11]. The phase change, which is accompanied by the propagation of light through the length of L , can be calculated as [7] …”

Section: × 1 All-optical Switchmentioning

confidence: 99%

“…The phase difference occurring between linear and nonlinear cases is the basis of all-optical switching [8]. Crystalline minerals with high Kerr nonlinear effect have been commonly used in optical gates [9][10][11], slow light waveguide, and all optical switches [12][13][14]. Meanwhile, the organic materials with high nonlinearities, in comparison with mineral counterparts, can be used for designing optical switches.…”

Section: Introductionmentioning

confidence: 99%

An ultrafast all-optical switch based on a nonlinear photonic crystal waveguide using single crystal p-toluene sulfonate

Taheri¹,

Omoomi²

2017

Turk J Elec Eng & Comp Sci

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Abstract:A novel design of an all-optical switch is proposed based on a nonlinear photonic crystal Mach-Zehnder interferometer (PC-MZI) to get the maximum switching speed and the minimum consuming power. As far as we know, this is the first study using a nonlinear polymer in one of the PC-MZI arms for realizing the switching phenomenon. All used components, such as bends, waveguides, and splitters, were individually optimized. Finite difference time domain and plane wave expansion methods were also utilized for the simulation of light propagation in the proposed structures.

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“…One of the reasons for paying more attention to this structure is that it is possible to design different types of circuits using photonic crystals. Many logic gates have been designed with photonic crystals [10][11][12][13][14][15][16][17]. Moreover, many logic circuits such as adders, subtractors, decoders, encoders, and de-multiplexers have been designed [18][19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of Linear All-Optical Comparator Based on Square-Lattice Photonic Crystals

et al. 2022

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An optical comparator is an important logic circuit used in digital designs. Photonic crystals are among the platforms for implementing different kinds of gates and logic circuits, and they are structures with alternating refractive indices. In this paper, an optical comparator is designed and simulated based on a square lattice photonic crystal. In the design of this comparator, a small-sized structure is used. The simulation results show that in the proposed comparator, there is a high difference between logical values “0” and “1”, which are defined based on the optical power level. Due to the small size of this comparator and the adequate difference between logical values “0” and “1”, this structure suits photonic integrated circuits with high accuracy. The proposed structure footprint is 149.04 µm2, and the calculated rise time for this circuit is less than 0.4 ps.

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All-optical NOT and AND gates using counter propagating beams in nonlinear Mach–Zehnder interferometer made of photonic crystal waveguides

Cited by 59 publications

References 31 publications

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

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

An ultrafast all-optical switch based on a nonlinear photonic crystal waveguide using single crystal p-toluene sulfonate

Design and Simulation of Linear All-Optical Comparator Based on Square-Lattice Photonic Crystals

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