Design and simulation of a 2 × 1 All-Optical multiplexer based on photonic crystals

Parandin, Fariborz; Sheykhian, Arezoo

doi:10.1016/j.optlastec.2022.108021

Cited by 51 publications

(21 citation statements)

References 41 publications

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“…With the advancement of technology and the acquisition of optical circuits, it is predicted that in the future, optical circuits can replace electronic circuits. However, due to the limitations in the technology of making these devices today, these devices are not yet widely available [11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of a wireless circuit to monitor body, ambient temperature and vital signs associated with heart in patients, athletes and drivers

Parandin

Heidari

Rahimi

et al. 2023

Preprint

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This study aimed to design and construct a bracelet system to measure the skin temperature, range, heart rate of the patients, wirelessly, which can be implemented at the lowest expense and the high cost of attending patients in health centers is reduced. Therefore, a complete automation system can be implemented, which includes review processes, alerts, warnings, contacting patients, dispatching to the site, and patient transfer. In this research, a camera is also embedded in the car to check either the eyes of the driver are closed or open, which detects driver drowsiness and distraction and activates the vibrator in the bracelet. The system is also equipped with a graphical interface on the cell phone during the exercise or at home in order to display the measurements of the above quantities and alert when the quantities are higher than or equal to the desired limit.

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Section: Introductionmentioning

confidence: 99%

Design and implementation of a wireless circuit to monitor body, ambient temperature and vital signs associated with heart in patients, athletes and drivers

Parandin

Heidari

Rahimi

et al. 2023

Preprint

Self Cite

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“…In this method the optical device is constructed based on constructive and destructive interference phenomenon of optical beams. Many optical devices such as isolator, decoder, gates, adders, subtractors, comparators, convertors and multiplexer were made with this procedure [15][16][17][18][19][20][21][22][23][24][25]. The functional parameters of these optical devices including ON-OFF contrast ratio (CR), bit rate (BR), optical intensity (OI), fall, rise and delay times (T r , T f andT d ) and total footprint (TFP) were evaluated.…”

Section: Introductionmentioning

confidence: 99%

A novel proposal for all optical 1-bit comparator based on 2D linear photonic crystal

Askarian

Parandin

2022

J Comput Electron

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In this paper, we are going to employ seven optical waveguides (OWGs) based on two-dimensional (2D) linear photonic crystal (LPhC) for realizing an all optical comparator (AOCMP). The proposed 1-bit AOCMP has a very simple structure with a footprint of 351 μm 2 which is composed of 31 × 33 cubic lattice of silicon rods immersed in air. This LPhC comparator comprises two input ports and two output ports. The functionality of the proposed 1-bit AOCMP is based on constructive and destructive interference phenomenon of optical beams and phase shift keying technique. The nite difference time domain (FDTD) procedure based on Yee's Algorithm is used to compute the propagation of optical waves in this structure. The FDTD simulation results of suggested 1-bit AOCMP indicate that the minimum and maximum values of the normalized power (NP) at ON and OFF states for output ports are 73% and 15%, respectively. Also, the ON-OFF contrast ratio (CR), bit rate (BR), rise and fall times (T r and T f ) of the suggested design are about 6.87 dB, 2.22 Tb/S, 0.15ps and 0.05ps, respectively.

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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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Design and simulation of a 2 × 1 All-Optical multiplexer based on photonic crystals

Cited by 51 publications

References 41 publications

Design and implementation of a wireless circuit to monitor body, ambient temperature and vital signs associated with heart in patients, athletes and drivers

Design and implementation of a wireless circuit to monitor body, ambient temperature and vital signs associated with heart in patients, athletes and drivers

A novel proposal for all optical 1-bit comparator based on 2D linear photonic crystal

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

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