Dual-channel-output all-optical logic AND gate at 20 Gbit/s based on cascaded second-order nonlinearity in PPLN waveguide

Wang, J.; Sun, Junqiang; Sun, Qizhen; Wang, D.; Zhou, Meiling; Zhang, Chi; Huang, Dexiu; Fejer, M. M.

doi:10.1049/el:20071236

Cited by 19 publications

(3 citation statements)

References 7 publications

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“…Up to now, many schemes have been demonstrated to realize various elementary optical logic operations, including AND, OR, NOT, XOR, XNOR, NAND, and NOR [32,55,61,62,[76][77][78][79][80][81][82][83][84][85]. By combining multiple elementary optical logic operations, advanced logic operations such as half-adder, half-subtractor, full-adder, and full-subtractor have also been proposed and demonstrated [36,[86][87][88][89][90][91].…”

Section: Binary Optical Logicmentioning

confidence: 99%

M-ary Optical Computing

Wang¹,

Long²

2017

Cloud Computing - Architecture and Applications

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The era of cloud computing has fuelled the increasing demand on data centers for highperformance, high-speed data storage and computing. Digital signal processing may find applications in future cloud computing networks containing a large sum of data centers. Addition and subtraction are considered to be fundamental building blocks of digital signal processing which are ubiquitous in microprocessors for arithmetic operations. However, the processing speed is limited by the electronic bottleneck. It might be valuable to implement high-speed arithmetic operations of addition and subtraction in the optical domain. In this chapter, recent results of M-ary optical arithmetic operations for high base numbers are presented. By exploiting degenerate and nondegenerate four-wave mixing (FWM) in highly nonlinear fibers (HNLFs), graphene-assisted optical devices, and silicon waveguide devices, various types of two-/three-input high-speed quaternary/octal/decimal/hexadecimal optical computing operations have been demonstrated. Operation speed up to 50 Gbaud of this computing approach is experimentally examined. The demonstrated M-ary optical computing using high base numbers may facilitate advanced data management and superior network performance.

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Section: Binary Optical Logicmentioning

confidence: 99%

M-ary Optical Computing

Wang¹,

Long²

2017

Cloud Computing - Architecture and Applications

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“…At present, scholars have proposed some schemes to implement optical logic gate and conducted relevant experimental verification, which are roughly divided into two categories: schemes based on optical media and those based on modulators. In the former scheme, semiconductor optical amplifier (SOA) [10]- [12], Highly nonlinear fiber (HNLF) [13]- [14], silicon nanowire [15], periodically poled lithium niobate (PPLN) [16] and silicon waveguide [17] are widely used. However, SOA is susceptible to carrier recovery time, is more sensitive to polarization, and is short in terms of speed limit and delay.…”

Section: Introductionmentioning

confidence: 99%

A New Scheme to Implement the Reconfigurable Optical Logic Gate in Millimeter Wave Over Fiber System

Hui

Wang

et al. 2023

IEEE Access

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In this work, we employ two Mach-Zehnder modulators (MZM) to achieve a novel six kinds of reconfigurable optical logic gate in millimeter wave over fiber, in which one MZM is used to generate millimeter wave (mm-wave) signal and the other is used to attain optical logic gate. By adjusting the direct current (DC) bias voltage of the first MZM, a frequency doubling mm-wave signal can be obtained and no filter is needed. By controlling the radio frequency (RF) drive voltage and DC bias voltage of the second MZM, the phase of between upper and lower arms can be converted. By adjusting the phase of the first channel RF signal to ( / 2, 0)  , setting the phase of the second channel RF signal to (0, / 2)  and controlling the bias voltage to let the phase of the upper and lower to be /2  and /4  , respectively, OR logic gate can be obtained. To obtain AND, NOR, NAND, XOR and NXOR logic gate, we just need to get proper phase by adjusting the RF drive voltage and DC bias voltage of the second MZM. According to the simulation, the millimeter wave signal with a frequency of 50 GHz can be obtained, which has completed the logic operation.

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“…Various building blocks traditionally manipulated in an electronic way, including logic operations such as NOT, AND, OR, and XOR, and arithmetic functions such as addition and subtraction, have found alternatives by optical counterparts [2][3][4][5][6][7][8][9][10][11]. For instance, various logic gates (NOT, AND, OR, XOR, NAND, NOR, XNOR) and arithmetic calculators (adder, subtracter) for binary numbers have been reported via optical nonlinearities, including the use of cross-gain modulation and four-wave mixing (FWM) in semiconductor optical amplifiers [2][3][4][5][6], second-order nonlinearities in a periodically poled lithium niobate waveguide [6][7][8][9][10], and crossphase modulation in a highly nonlinear fiber (HNLF) [11].…”

mentioning

confidence: 99%

High-speed addition/subtraction/complement/doubling of quaternary numbers using optical nonlinearities and DQPSK signals

et al. 2012

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We propose an innovative approach to implementing multiple arithmetic functions of quaternary numbers using optical nonlinearities and differential quadrature phase-shift keying (DQPSK) signals. By adopting 100 Gbit/s DQPSK signals (A, B) and exploiting nondegenerate four-wave mixing (FWM) for addition/subtraction and degenerate FWM for complement and doubling in a single highly nonlinear fiber, we demonstrate 50 Gbaud/s simultaneous quaternary addition (A+B), dual-directional subtraction (A-B, B-A), complement (-A, -B), and doubling (2B). Power penalties less than 4 dB (addition), 3 dB (dual-directional subtraction), 2 dB (complement), and 3.1 dB (doubling) are observed at a bit-error rate of 10(-9).

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Dual-channel-output all-optical logic AND gate at 20 Gbit/s based on cascaded second-order nonlinearity in PPLN waveguide

Cited by 19 publications

References 7 publications

M-ary Optical Computing

M-ary Optical Computing

A New Scheme to Implement the Reconfigurable Optical Logic Gate in Millimeter Wave Over Fiber System

High-speed addition/subtraction/complement/doubling of quaternary numbers using optical nonlinearities and DQPSK signals

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