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conference on optics in computing 2000

作者： Awatsuji, Y Ishimaru, T Kubota, T Kyoto Inst Technol Dept Elect & Informat Sci Sakyo Ku Kyoto 6068585 Japan

ISBN: (纸本)0819437328

:We propose an application specific opeoelectronic parallel computing architecture as a solution of the optical computing system: to demonstrate the usefulness of optics in information processing system of near future. Solving optimization problems based on the genetic algorithm is studied as a target of the proposed architecture. The composition of the proposed architecture is described. Validity of the operation of the proposed architecture is verified by computer simulation. Processing performance of the system based on the architecture is analyzed and its advantageous conditions comparing with the electronic multiprocessor system are clarified. An optical image broadcaster is constructed to demonstrate the capability of optics in the system and the experimental results are presented.

关键词： parallel processing digital optical computing optoelectronic processing optimization problem genetic algorithm multiple imaging

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optics in computing, - 40 years later.

Optics in computing, - 40 years later.

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conference on Critical Technologies for the Future of computing

作者： Shamir, J Technion Israel Inst Technol Dept Elect Engn IL-32000 Haifa Israel

ISBN: (纸本)0819437549

Optical signal processing and computing was triggered by the invention of the laser. Starting practically in 1960, it really took off with the introduction of the spatial matched filter in 1964. About 36 years later we are still far from extensive use of optics in traditional computing systems. In this presentation we shall overview the developments during these 40 years and discuss the advantages, disadvantages and limitations (fundamental as well as technological) of optics for this application. Extending the concept of computing and introducing the notion of Application Oriented computing, we demonstrate that optics already plays an important, and rapidly growing role in advanced computing paradigms, although in a different way than it was initially anticipated.

关键词： signal processing information processing correlator optical computing hybrid processor

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Optoelectronic multi-chip-module based on planar-integrated free-space optics

Optoelectronic multi-chip-module based on planar-integrated ...

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conference on optics in computing 2000

作者： Gruber, M Sinzinger, S Jahns, J Hagen Univ D-58084 Hagen Germany

ISBN: (纸本)0819437328

We present an architectural approach to overcome the interconnection problem of modern VLSI-circuits and demonstrate it experimentally in form of a multi-chip-module (MCM) in which four optoelectronic VLSI-chips communicate optically via a planar-integrated free-space optical system. The MCM implements a distributed parallel computing model and is compact and robust. The optical system has been integrated on the surfaces of a slab of quartz glass by means of lithographic microfabrication techniques. The quartz substrate also serves as circuit board for the opto-electronic VLSI-chips. Our approach allows dense packaging (>100 per mm(2)) of large numbers of optical interconnects.

关键词： optical computing optical interconnects planar optical integration opto-electronic multi-chip-modules

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Micro-optical elements and optoelectronic devices in optics-in-computing system demonstrators

Micro-optical elements and optoelectronic devices in optics-...

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13th Annual Meeting. IEEE Lasers and Electro-optics Society 2000 Annual Meeting (LEOS 2000)

作者： Taghizadeh, M.R. Waddie, A.J. Heriot-Watt Univ Edinburgh United Kingdom

The continuing improvement in micron-scale optical element design and fabrication has driven the creation of ever more complex optics-in-computing system demonstrators. In this paper we shall review two such demonstra... 详细信息

关键词： Optoelectronic devices

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Quantum computing with quantum optical systems

Quantum computing with quantum optical systems

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2000 International Quantum Electronics conference (IQEC 2000)

作者： Jaksch, D. Calarco, T. Cirac, J.I. Zoller, P. Univ of Innsbruck Innsbruck Austria

Quantum optical systems that implement quantum computing tasks concentrating on two-qubit gates are presented. Two schemes, one based on dipole moments of Rydberg atoms and the other base on conditional Coulomb interactions between ions in arrays of micro-traps, are analyzed. These schemes are combined with the features of quantum optics, in particular quantum control and long decoherence times.

关键词： Quantum optics

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Astigmatic coherence sensor for digital imaging

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optics LETTERS 2000年第23期25卷 1726-1728页

作者： Marks, DM Stack, RA Brady, DJ Univ Illinois Beckman Inst Sci & Technol Urbana IL 61801 USA Univ Illinois Dept Elect & Comp Engn Urbana IL 61801 USA

We present a novel sensor that measures the entire spatial coherence function within an aperture by use of a variable astigmatic lens. This sensor permits digital capture and processing of partially coherent fields. We demonstrate the sensor by sampling and computing the coherent modes of a three-dimensional incoherent source. (C) 2000 Optical Society of America.

关键词： coherence Sampling astigmatic lens Spatial coherence Sensors conference documents coherence functions PARTIAL COHERENCE apertures Digital images

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8 x 8 digital smart pixel array

8 x 8 digital smart pixel array

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conference on optics in computing 2000

作者： Kawai, H Baba, A Takeuchi, Y Komuro, T Ishikawa, M Matsushita Res Inst Tokyo Inc Real World Comp Partnership Adapt Devices Matsushita Lab Tama Ku Kawasaki Kanagawa 2148501 Japan

ISBN: (纸本)0819437328

We present a digital smart pixel array, a new type of smart pixel array, for high speed parallel image processing. We have developed assembly methods for the device and fabricated 8 x 8 and 2 x 2 digital smart pixel arrays. We have also cascaded the 2 x 2 arrays, and demonstrated the functions of the device. Operation of the array can be changed by external instructions and basic operations, including data transmission between nearest neighboring pixels, were implemented. The operating speed in the cascaded system was 0.5 ms/frame.

关键词： smart pixel array optical computing optical interconnection

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Femtosecond laser pulse shaping: Applications to computing and communications

Femtosecond laser pulse shaping: Applications to computing a...

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optics in computing, OC 2001

作者： Warren, Warren S. Center for Ultrafast Laser Applications Princeton University PrincetonNJ08544 United States

Femtosecond laser pulse shaping and novel pulse shape detection methods can be used to develop Tb/s communications architectures, measure the onset of fiber nonlinearity, correct for distortions in optical amplifiers,... 详细信息

ISBN: (纸本)1557526575

关键词： Optical fibers

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Parallel distributed free-space optoelectronic compute engine using flat "plug-on-top" optics package

Parallel distributed free-space optoelectronic compute engin...

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conference on optics in computing 2000

作者： Berger, C Ekman, J Wang, X Marchand, P Spaanenburg, H Kiamilev, F Esener, S Univ Calif San Diego ECE Dept La Jolla CA 92093 USA

ISBN: (纸本)0819437328

We report about ongoing work on a free-space optical interconnect system, which will demonstrate a Fast Fourier Transformation (FFT) calculation, distributed among six processor chips. Logically, the processors are arranged in two linear chains, where each element communicates optically with its nearest neighbors. Physically, the setup consists of a large motherboard, several multi-chip carrier modules, which hold the processor/driver chips and the optoelectronic chips (arrays of lasers and detectors), and several plug-on-top optics modules, which provide the optical links between the chip carrier modules. The system design tries to satisfy numerous constraints, such as compact size, potential for mass-production, suitability for large arrays (up to 1024 parallel channels), compatibility with standard electronics fabrication and packaging technology, potential for active misalignment compensation by integrating MEMS technology, and suitability for testing different imaging topologies. We present the system architecture together with details of key components and modules, and report on first experiences with prototype modules of the setup.

关键词： free-space optical interconnect (FSOI) distributed computing Fast Fourier Transformation (FFT) optoelectronic packaging hybrid imaging plug-on-top optics

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Image database construction and search algorithm for smart pixel optoelectronic systems

Image database construction and search algorithm for smart p...

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conference on optics in computing 2000

作者： Kawamata, D Naruse, M Ishii, I Ishikawa, M Univ Tokyo Grad Sch Engn Dept Math Engn & Informat Phys Bunkyo Ku Tokyo 113 Japan

ISBN: (纸本)0819437328

The extraordinary increase of digital image contents requires the development of methods to classify or quickly search video sequences in movie databases. In this paper, we suggest a novel algorithm based on Eigen value decomposition to construct and search video databases, and that can be implemented using smart pixel optoelectronic systems. By successive iterations the images are progressively classified in sets and subsets in a tree-type configuration. To evaluate this method, a movie containing 2,262 frames has been analyzed, and a successful classification of these images in function of their contents was obtained. The realization of this algorithm on a smart pixel system called OCULAR-II1 is also discussed, and a demonstration of the database search algorithm on the OCULAR-II system is described.

关键词： image database image indexing optoelectronic computing

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