All-optical NAND gate using cross-gain modulation in semiconductor optical amplifiers

Kim, J.H.; Yu, Bingyan; Byun, Young Tae; Jeon, Young Min; Lee, S.; Woo, Deok Ha; Kim, S.H.

doi:10.1049/el:20052320

Cited by 83 publications

(16 citation statements)

References 7 publications

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“…Recent approaches exploit ultra-high-speed carrier dynamics to improve the nonlinear response speed [18][19][20][21][22]. There has been some progress at the device level using various approaches, most of which are based on one of the mechanisms of cross-gain modulation (XGM) [23][24][25][26][27], cross-phase modulation (XPM) [28,29], four-wave mixing (FWM) [30,31] and cross-polarization modulation (XPolM) [32,33]. Some of these mechanisms inevitably limit the operating speed of such devices owing to the carrier recovery time of SOA.…”

Section: Survey Of Potential Physical Approaches To Phase-erasure mentioning

confidence: 99%

All-optical linear reconfigurable logic with nonlinear phase erasure

et al. 2009

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We introduce a novel all-optical logic architecture whereby the gates may be readily reconfigured to reprogram their logic to implement (N)AND/(N)OR/X(N)OR. A single gate structure may be used throughout the logic circuit to implement multiple truth tables. The reconfiguration is effected by an optical reference signal. The reference may also be adapted to an arbitrary Boolean complex alphabet at the gate logic inputs and calibrated to correct gate imperfections. The all-optical gate structure is partitioned into a linear interferometric front end and a nonlinear back end. In the linear section, two optical logic inputs, along with a reference signal, linearly interfere. The nonlinear back end realizes a phase-erasure (or phase-reset) function. The reconfiguration and recalibration capabilities, along with the functional decoupling between the linear and nonlinear sections of each gate, facilitate the potential aggregation of large gate counts into logic arrays. A fundamental lower bound for the expended energy per gate is derived as 3hnu+kT ln2 Joules per bit.

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Section: Survey Of Potential Physical Approaches To Phase-erasure mentioning

confidence: 99%

All-optical linear reconfigurable logic with nonlinear phase erasure

et al. 2009

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“…The all-optical logic and all-optical arithmetic unit (ALU) proposed. such as using Semiconductor Optical Amplifier (SOA) [2][3][4][5], a Quantum Dot [6,7] , a Terahertz Optical Asymmetric de-multiplex (TOAD) [8,9], cascaded microring resonators [10,11], an all-optical arithmetic unit [12,13] , an all-optical binary counter [14], an all-optical adder [15,16]. However, the new design and new techniques in research materials have become the challenge especial nonlinear material device and add-drop filter.…”

Section: Introductionmentioning

confidence: 99%

All-Optical Logic and Arithmetic Operators Designed by Modified Add-Drop Filter

Phongsanam

Yupapin

2018

ECTI-CIT

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Optical micro-ring resonators (MRRs) element can be used in many applications. This paper we propose a photonics circuit design based on optical tree architecture (OTA) for all-optical elements by using the modified add-drop filter for an all-optical arithmetic logic unit (ALU) aimed for computing applications system. All-optical 2x4 decoder, all-optical comparator, all-optical half adder, all-optical half subtractor, all-optical full adder, all-optical full subtractor and proposed new design all-optical 4x16 decoder were proposed. We have studied the nonlinear effect in the modified add-drop filter system, which is control by injected the nonlinear pulses on top as an input for generated all-optical logic and arithmetic operations simultaneously at the through and drop port of modified add-drop filter. The optical input and control field of the modified add-drop filter circuit can be formed by nonlinear dark and bright pluses. The obtained simulation results have shown that the nonlinear pulse generated by the nonlinear modified add-drop filter can control the output consistency, which is important when the interconnect between each circuit output parts are required. The advantages of the modified add-drop filter are low power, ultra-fast switching, tuneable and high security which is compact size and footprint. It is suitable for the next generation of all-optical small-scale device and all-optical computing system requirements.

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“…A decoder is important for header processing in typical core router/demultiplexer for addressing output port. There are many research areas which have been proposed using various all-optical switching and all-optical logic operation, such as all-optical packet-switching [1], all-optical demultiplexing [2] semiconductor optical amplifier (SOA) [3]- [5], TOAD based interferometer device [6]- [9], cascaded microring resonators [10], and all-optical code conversion [11]- [13]. Among the different proposed schemes, the terahertz optical asymmetric demultiplexer (TOAD)/semiconductor optical amplifier (SOA)-assisted Sagnac gate effectively combines fast switching time and a reasonable noise figure, with the ease of integration and overall practicality that enables it to compete favorably with other similar optical time division multiplexing devices.…”

Section: Introductionmentioning

confidence: 99%

Design of 2-to-4 All-Optical Decoder with the Help of Terahertz Optical Asymmetric Demultiplexer

Bhattacharyya¹,

Gayen²,

Chattopadhyay³

2016

IJMNTA

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An all-optical 2-to-4 decoder unit with the assist of terahertz optical asymmetric demultiplexer (TOAD) is presented. The all-optical 2-to-4 decoder with a set of all-optical switches is designed which can be used to achieve a high-speed central processor unit using optical hardware. The unique output lines can be used for all-optical header processing. We attempt to develop an integrated all-optical circuit which can perform decoding of signal. This scheme is very simple and flexible for performing different logic operation and to design advanced complex logic. Simulated results are confirming the described methods.

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All-optical NAND gate using cross-gain modulation in semiconductor optical amplifiers

Cited by 83 publications

References 7 publications

All-optical linear reconfigurable logic with nonlinear phase erasure

All-optical linear reconfigurable logic with nonlinear phase erasure

All-Optical Logic and Arithmetic Operators Designed by Modified Add-Drop Filter

Design of 2-to-4 All-Optical Decoder with the Help of Terahertz Optical Asymmetric Demultiplexer

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