Design of an all optical half-adder based on 2D photonic crystals

Karkhanehchi, Mohammad Mehdi; Parandin, Fariborz; Zahedi, Abdulhamid

doi:10.1007/s11107-016-0629-0

Cited by 135 publications

(29 citation statements)

References 23 publications

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“…The performance accuracy table and the output power levels of the half adder designed have been presented in Table 1. In Table 2, this structure has been compared with some other structures [13,14,16,27].…”

Section: Resultsmentioning

confidence: 99%

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Ultra‐fast and compact all‐optical half adder using 2D photonic crystals

Seifouri

Olyaee

Sardari

et al. 2019

IET Optoelectronics

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Section: Resultsmentioning

confidence: 99%

“…In 2017, Karkhanehchi et al introduced a small, simple structure for use in half adder. In this structure, the photonic crystal nanoresonator was used and its contrast ratio was 3.19 [13]. Alipour-Banaei et al suggested 1-bit full-adder optical circuit by using two ring resonators and the non-linear structure.…”

Section: Introductionmentioning

confidence: 99%

Ultra‐fast and compact all‐optical half adder using 2D photonic crystals

Seifouri

Olyaee

Sardari

et al. 2019

IET Optoelectronics

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“…Thus, waveguides in a PhC can be created by removing one or more rows of dielectric rods. PhC-based structures are excellent choices for designing many types of optical devices such as optical filters [3][4][5][6][7][8], PhC fibers [9][10][11][12][13][14][15][16][17][18], multiplexers and demultiplexers [19][20][21][22][23][24][25][26], encoders and decoders [27][28][29][30], switches [31][32][33][34][35][36], logic gates [37][38][39][40][41][42], analog to digital converters (ADCs) [43][44][45][46][47][48][49], and sensors [50]…”

Section: Photonic Sensorsmentioning

confidence: 99%

A Novel All-Optical Sensor Design Based on a Tunable Resonant Nanocavity in Photonic Crystal Microstructure Applicable in MEMS Accelerometers

et al. 2020

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In view of the large scientific and technical interest in the MEMS accelerometer sensor and the limitations of capacitive, resistive piezo, and piezoelectric methods, we focus on the measurement of the seismic mass displacement using a novel design of the all-optical sensor (AOS). The proposed AOS consists of two waveguides and a ring resonator in a two-dimensional rod-based photonic crystal (PhC) microstructure, and a holder which connects the central rod of a nanocavity to a proof mass. The photonic band structure of the AOS is calculated with the plane-wave expansion approach for TE and TM polarization modes, and the light wave propagation inside the sensor is analyzed by solving Maxwell’s equations using the finite-difference time-domain method. The results of our simulations demonstrate that the fundamental PhC has a free spectral range of about 730 nm covering the optical communication wavelength-bands. Simulations also show that the AOS has the resonant peak of 0.8 at 1.644µm, quality factor of 3288, full width at half maximum of 0.5nm, and figure of merit of 0.97. Furthermore, for the maximum 200nm nanocavity displacements in the x- or y-direction, the resonant wavelengths shift to 1.618µm and 1.547µm, respectively. We also calculate all characteristics of the nanocavity displacement in positive and negative directions of the x-axis and y-axis. The small area of 104.35 µm2 and short propagation time of the AOS make it an interesting sensor for various applications, especially in the vehicle navigation systems and aviation safety tools.

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“…The same logic can be built with the 2-D PhCs for adding light signals logically. The finite difference time-domain (FDTD) FullWAVE method [1][2][3] is used for the simulation of all optical two bit adders [4][5][6][7][8][9][10][11] and three bit adders. [12][13][14][15][16][17] The light propagation inside 2-D PhCs lattice structure of an optical full adder is obtained in simulation as a sinusoidal wave (indicated by blue and red color) within the created defect crystal waveguides and cavities.…”

Section: Introductionmentioning

confidence: 99%

Investigation of light behavior of all optical full adders in two‐dimensional photonic crystals

Sonth¹,

Soma

Gowre³

2020

Micro & Optical Tech Letters

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In this article, an optical full adder is investigated in terms of light flow inside the two‐dimensional (2‐D) crystal lattice waveguide structures. The phenomenon such as resonance, splitter, and combiner based on the principle of constructive and destructive interference is used in the modeling of all optical full adders. Also, defects are introduced in the junction of the waveguide structures to pass/stop light wave inside the waveguide structure. The designed full adder structure in 2‐D photonic crystals (PhCs) occupies an area of 382.91 μm2 and maximum light confinement at the Sum and Cout output ports are 0.52 and 0.6 arbitrary unit (a.u.), respectively. The response time of the full adder structure is about 0.25 ps and the maximum contrast ratio achieved at the Sum is 7.16 dB and Cout is 5.74 dB. RSoft FullWAVE simulation tool is used to perform a full‐vector simulation of photonic structures.

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Design of an all optical half-adder based on 2D photonic crystals

Cited by 135 publications

References 23 publications

Ultra‐fast and compact all‐optical half adder using 2D photonic crystals

Ultra‐fast and compact all‐optical half adder using 2D photonic crystals

A Novel All-Optical Sensor Design Based on a Tunable Resonant Nanocavity in Photonic Crystal Microstructure Applicable in MEMS Accelerometers

Investigation of light behavior of all optical full adders in two‐dimensional photonic crystals

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