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logic gate for optical input using monostable-bistable transition of serially connected resonant tunnelling transistors

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ELECTRONICS LETTERS 1998年第3期34卷 250-251页

作者： Ohno, Y Kishimoto, S Mizutani, T Akeyoshi, T Nagoya Univ Chikusa Ku Nagoya Aichi 46401 Japan NTT Syst Elect Labs Atsugi Kanagawa 24301 Japan

The authors demonstrate a novel optical logic gate consisting of two resonant tunnelling transistors connected in series. The logic gate is characterised by an optically controlled bistability of the gate and a small ... 详细信息

关键词： monostable-bistable transition 10 muW optical logic gate optical bistability resonant tunnelling transistors optical logic serial connection optical logic devices and optical computing techniques resonant tunnelling transistor

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High-speed image processing on digital smart pixel array

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ELECTRONICS LETTERS 2002年第12期38卷 590-591页

作者： Kawai, H Baba, A Shibata, M Takeuchi, Y Komuro, T Fujimura, H Ishikawa, M Matsushita Elect Ind Co Ltd Adv Technol Res Labs Real World Comp Partnership Adapt Devices Matsushita LabTama Ku Kawasaki Kanagawa 2148501 Japan Univ Tokyo Grad Sch Engn Bunkyo Ku Tokyo 1138656 Japan

8 x 8 and 16 x 16 digital smart pixel arrays have been developed. Each pixel has a processing element, a photodetector, an LED, and diffractive optical elements. In addition, some image-processing algorithms have been... 详细信息

关键词： optical, image and video signal processing image-processing algorithms high-speed image processing processing speed diffractive optical elements digital smart pixel array photodetector smart pixels optical logic devices and optical computing techniques processing element LED image processing equipment

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Demonstration of 20Gbit/s all-optical logic XOR in integrated SOA-based interferometric wavelength converter

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ELECTRONICS LETTERS 2000年第22期36卷 1863-1864页

作者： Fjelde, T Wolfson, D Kloch, A Dagens, B Coquelin, A Guillemot, I Gaborit, F Poingt, F Renaud, M Tech Univ Denmark Res Ctr COM DK-2800 Lyngby Denmark OPTO Groupement Interet Econ F-91460 Marcoussis France

The results of optical logic exclusive-OR (XOR) at up to 20Gbit/s in an integrated SOA-based Mach-Zehnder interferometer are presented. For the first time, to the knowledge of the authors, BER measurements are demonstrated on 10Gbit/s optical logic XOR, with zero penalty. In addition, for the first time, 20Gbit/s all-optical XOR, with an integrated device that allows simple, stable and efficient operation, is demonstrated.

关键词： Semiconductor lasers integrated optics optical logic optical computing techniques optical computers, logic elements, and interconnects zero penalty Gbit/s all-optical logic XOR semiconductor optical amplifiers optical communication devices, equipment and systems Multiplexing and switching in optical communication BER measurements Lasing action in semiconductors Integrated optics integrated SOA-based Mach-Zehnder interferometer optical logic exclusive-OR optical harmonic generation, frequency conversion, parametric oscillation and amplification Gbit/s optical logic XOR optical wavelength conversion 20 Gbit/s integrated SOA-based interferometric wavelength converter Mach-Zehnder interferometers optical logic devices and optical computing techniques optical interferometry wavelength division multiplexing optical logic elements 10 Gbit/s

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DESIGN AND SIMULATION OF AN ON-BOARD LITHIUM-NIOBATE INTEGRATED optical PREPROCESSOR

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IEE PROCEEDINGS-J OPTOELECTRONICS 1990年第6期137卷 347-356页

作者： ARMENISE, MN PASSARO, VMN Dipartimento di Elettrotecnica ed Elettronica Università degli Studi di Bari Bari Italy

In the paper, the conceptual scheme of a LiNbO3integrated optical circuit for on-board data processing is proposed. The design of each integrated component and fabrication techniques are discussed. Finally, a simulati... 详细信息

关键词： lithium compounds simulation optical information processing integrated optical preprocessor Integrated optics LiNbO3 integrated optical circuit optical waveguides on-board data processing integrated optics optical waveguides optical logic devices and optical computing techniques circuit performance fabrication techniques

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Demonstration of highly scalable 100Gbit/s OTDM computer interconnect with rapid interchannel switching capability

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ELECTRONICS LETTERS 1998年第25期34卷 2418-2419页

作者： Deng, KL Runser, RJ Toliver, P Coldwell, C Zhou, D Glesk, I Prucnal, PR Princeton Univ Dept Elect Engn Princeton NJ 08544 USA

An experimental demonstration of an error free 100 Gbit/s optical rime division multiplexing (OTDM) broadcast star multiprocessor interconnect is presented. A highly scalable novel node design provides rapid interchan... 详细信息

关键词： 100 Gbit/s Multiplexing and switching in optical communication optical interconnections optical computing OTDM computer interconnect optical logic devices and optical computing techniques optical computing techniques interchannel switching optical time division multiplexing broadcast star multiprocessor interconnect time division multiplexing multiprocessor interconnection networks scalable node design

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10Gbit/s all-optical regenerative memory using single SOA-based logic gate

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ELECTRONICS LETTERS 1999年第2期35卷 158-159页

作者： Manning, RJ Phillips, ID Ellis, AD Kelly, AE Poustie, AJ Blow, KJ BT Labs Ipswich IP5 3RE Suffolk England

The authors report an all-optical regenerative memory operating at 10Gbit/s using a semiconductor optical amplifier-based interferometer as a regenerator in an optical fibre loop. Error-Free operation was measured aft... 详细信息

关键词： optical storage and retrieval Semiconductor lasers semiconductor optical amplifiers optical fibre loop light interferometers optical communication equipment optical storage optical logic optical fibre communication optical logic devices and optical computing techniques all-optical regenerative memory semiconductor optical amplifier interferometer optical repeaters logic gate 10 Gbit/s

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PYRAMIDICAL PIPELINING OF AO CELLS FOR computing SUCCESSIVE MATRIX POWERS

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IEE PROCEEDINGS-J OPTOELECTRONICS 1988年第3期135卷 276-280页

作者： MARGARITIS, K BEKAKOS, MP EVANS, DJ Department of Computer Studies Loughborough University of Technology Loughborough UK

The paper describes an optical implementation for successive matrix powers, using an optical processor as a basic component for matrix/matrix multiplication with unidirectional data flow. Then, a series of optical processors are lined up to produce a pyramidical pipeline for successive matrix squarings. Suitable applications which would benefit include, besides the calculation of matrix powers, the evaluation of matrix polynomials, iterative solutions of linear equations, iterative matrix inversion, and the calculation of matrix functions, i.e. matrix exponential.

关键词： Computer architecture optical information processing matrix functions pipeline processing optical computing techniques Algebra pyramidical pipelining acousto-optical devices iterative matrix inversion unidirectional data flow AO cells matrix polynomials matrix algebra matrix exponential iterative solutions computing Linear algebra (numerical analysis) optical processor matrix/matrix multiplication linear equations iterative methods optical logic devices and optical computing techniques successive matrix powers Acousto-optical devices optical implementation matrix powers

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optical phase-sensitive amplification of higher-order QAM signal with single Mach-Zehnder amplitude modulator

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ELECTRONICS LETTERS 2021年第1期57卷 32-33页

作者： Shimizu, S. Kobayashi, T. Kazama, T. Umeki, T. Enbutsu, K. Kasahara, R. Miyamoto, Y. NTT Corp NTT Network Innovat Labs Yokosuka Kanagawa Japan NTT Corp NTT Device Technol Labs Atsugi Kanagawa Japan

An optical phase-sensitive amplifier (PSA) has the potential of low-noise optical amplification. A frequency non-degenerate PSA (ND-PSA) can amplify arbitrary modulation formats including higher-order QAM. The ND-PSA requires a co-propagating phase conjugated light (idler light) that has been conventionally created with an optical phase conjugator at the transmitter side. We propose a transmitter configuration using simultaneous signal generation of both a signal and its idler by double-sideband modulation for transmission systems with ND-PSAs. The proposed scheme provides a simple configuration with a single Mach-Zehnder amplitude modulator without optically creating the idler light. We performed experiments using 16QAM, 32QAM, and probabilistically shaped 256QAM signals. As a result, a phase-sensitive amplification with each modulation format was successfully demonstrated using the proposed transmitter configuration.

关键词： Fibre lasers and amplifiers optical phase conjugation Multiwave mixing optical beam modulators optical computers, logic elements, and interconnects Amplifiers optical phase conjugation and multiwave mixing Modulation and coding methods optical, image and video signal processing optical communication equipment Computer vision and image processing techniques Other topics in statistics optical logic devices and optical computing techniques Fibre lasers and amplifiers

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