Study of the Performance of an All-Optical Half-Adder Based on Three-Core Non-Linear Directional Fiber Coupler Under Delayed and Instantaneous Non-Linear Kerr Responses

Menezes, Jaileila de Araújo; Fraga, W. B.; Lima, F. T.; Guimarães, G. F.; Ferreira, A. C.; Lyra, M. L.; Sombra, A. S. B.

doi:10.1080/01468030.2011.568669

Cited by 11 publications

(4 citation statements)

References 39 publications

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“…Out of these devices, half adder, whose function can be achieved through the combination of XOR and AND logic gates, forms the heart of digital processors. A triple core fiber coupler based numerical study for employing a planar coupler to achieve half adder with an apt control signal (CS) has been realized by Menezes et al [22,23]. A schematic and truth table for logic operation of half adder is shown by figures 1(a) and (b).…”

Section: Introductionmentioning

confidence: 99%

Logic gates based all-optical binary half adder using triple core photonic crystal fiber

Uthayakumar

Raja

2018

J. Opt.

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This study presents the implementation of an all-optical binary logic half adder by employing triple core photonic crystal fiber (TPCF). The noteworthy feature of the present investigation is that an identical set of TPCF schemes, which demonstrated all-optical logic functions in our previous report has revealed the ability to demonstrate the successful half adder operation. The control signal (CS) power defining the extinction ratios of the output ports for the considered symmetric planar and triangular TPCFs are evaluated through numerical algorithm. Through suitable CS power and input combinations, the logic outputs are generated from extinction ratios to demonstrate the half adder operation. The results obtained display the significant influence of the input conditions on the delivery of half adder operation for different TPCF schemes considered. Furthermore, chloroform filled TPCF structures demonstrated the efficient low power half adder operation with significant figure of merit, compared to that of the silica counterpart.

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Section: Introductionmentioning

confidence: 99%

Logic gates based all-optical binary half adder using triple core photonic crystal fiber

Uthayakumar

Raja

2018

J. Opt.

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“…The light proceeding from ones of the input gates (I1 or I2) will be guided for one of the output gates (O1 or O2), and depend, in linear regime, on the coupling length (Lc). Thus, in the linear regime, the behavior of the coupler is associated to the Lc parameter as [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32]:…”

Section: Nonlinear Optical Fiber Couplersmentioning

confidence: 99%

Analysis of the Performance of Optical Code-Division Multiple-Access System (OCDMA), Operating with Gold Codes under Nonlinear Effects

Guimarães¹,

Bastos²,

Ferreira³

et al. 2013

JEMAA

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A numerical simulation study of the performance of encoding and decoding of short optical pulse in OCDMA (Optical Code Division Multiple Access) systems under non-linear optical effects is presented. The performance of encoding and decoding short pulses is obtained through use of device FBG (fiber Bragg grating) where the codes are inserted through discrete jumps in the optical phase (±π). The multiuser interference is also the object of the present study, where a figure of merit (interference figure) is used to quantify the interference in multiuser auto and cross correlation. We evaluate the dependence of the multiuser interference for the coupling constant of FBG. Finally, the interference inserted in the autocorrelation due to nonlinear effects generated in the nonlinear switching of the coded pulse in a dual core nonlinear directional coupler is examined, where temporal broadening of pulses decoded is observed.

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“…Many researchers have addressed general applications with optical logic gates and logic processing signals [6][7][8][9][10][11][12][13][14][15][16][17][18]. The authors in [15] recently demonstrated a new scheme with optical logic operation in a Sagnac interferometer by electro-optical modulation.…”

Section: Introductionmentioning

confidence: 99%

PAM–ASK optical logic gates in an optical fiber Sagnac interferometer

Ferreira

Coelho

Sousa

et al. 2016

Optics & Laser Technology

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Study of the Performance of an All-Optical Half-Adder Based on Three-Core Non-Linear Directional Fiber Coupler Under Delayed and Instantaneous Non-Linear Kerr Responses

Cited by 11 publications

References 39 publications

Logic gates based all-optical binary half adder using triple core photonic crystal fiber

Logic gates based all-optical binary half adder using triple core photonic crystal fiber

Analysis of the Performance of Optical Code-Division Multiple-Access System (OCDMA), Operating with Gold Codes under Nonlinear Effects

PAM–ASK optical logic gates in an optical fiber Sagnac interferometer

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