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Optical Interconnects, IEE Colloquium on

Date 16 Nov 1988

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Displaying Results 1 - 15 of 15
  • Optical waveguides in silicon for optical interconnects

    Publication Year: 1988, Page(s):12/1 - 12/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (168 KB)

    As an optical material single crystal silicon exhibits certain properties which, when coupled to an extremely mature processing technology which is dimensionally compatible with integrated optics, makes it very attractive for waveguide realisation. Low absorption loss in the 1.3-1.5 μm wavelength band, simple control of the refractive index by doping, electrical/optical control of the refractiv... View full abstract»

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  • A hybrid PLZT/silicon modulator array for optical interconnects

    Publication Year: 1988, Page(s):13/1 - 13/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (168 KB)

    Describes a novel high-speed, two-dimensional modulator array based on electro-mechanical hybridisation of bulk silicon backplane and PLZT electro-optic ceramic, and capable of exploiting the inherent parallelism of the planar interface for optical interconnection of VLSI circuits View full abstract»

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  • Construction of space-invariant fan-out holograms by copying Dammann grating onto dichromated gelatin

    Publication Year: 1988, Page(s):8/1 - 8/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (172 KB)

    One of the components essential to optical computing systems is a spatially invariant optical interconnect. Such a device is necessary, for example, in the distribution of laser power to an array of optical logic gates. Although there are several possible ways of achieving this, the use of a Dammann grating provides a particularly attractive solution. A Dammann grating is basically a 2-D binary ph... View full abstract»

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  • A reconfigurable 2-D optical interconnect system using a liquid crystal spatial light modulator

    Publication Year: 1988, Page(s):14/1 - 14/5
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (204 KB)

    Describes an implementation of an 8×8 reconfigurable optical interconnection system using a pixellated 2-D spatial light modulator. The interconnect device may be visualised as being part of a processing system consisting of three types of main components a 2-D array of independent optical modulators (e.g. MQW or PLZT devices), a 2-D reconfigurable optical interconnection, and a 2-D array of... View full abstract»

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  • Interchip and WSI optical interconnect based on electro absorption modulators

    Publication Year: 1988, Page(s):10/1 - 10/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (192 KB)

    After a brief account of the implications of scaling of VLSI circuits and the possible effects of the developing superconductors for optical interconnect, the potential superiority of using electro absorption modulators compared to laser diodes or conventional electronics is demonstrated on a power vs. speed basis. Results suggest, this approach gives considerable power saving for interchip links ... View full abstract»

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  • Computer generated holograms: iterative and Coordinate transform interconnects

    Publication Year: 1988, Page(s):7/1 - 7/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (140 KB)

    The computer generated hologram (CGH) may be used to produce an optical fan out. This fan out element is a fundamental unit in all parallel optical computing architectures. Optical fan out may be accomplished using optically produced holograms in a computer controlled scheme. The CGH allows for totally flexible and precise control of beam directions and intensity. These digital holograms model the... View full abstract»

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  • Free space holographic optical interconnects

    Publication Year: 1988, Page(s):6/1 - 6/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (144 KB)

    Demonstrates the feasibility of performing the perfect shuffle using holographic optical interconnects which in conjunction with the Sightmod and suitable associated electronic hardware could, in principle, be used to implement sorting and related algorithms. This would not make much sense, however, since although the shuffle itself is performed in parallel, the data is still fed into the Sightmod... View full abstract»

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  • Fabrication of periodic Fourier transform kinoforms on dichromated gelatin

    Publication Year: 1988, Page(s):9/1 - 9/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (160 KB)

    Properly optimised kinoforms are theoretically almost ideal elements for space-invariant optical interconnection. The authors analyse the required fabrication accuracy of the phase relief structure and the effects of nonlinearity in the recording material by numerical simulations. Results of some initial experiments on the fabrication of kinoforms on dichromated gelatin, using a new type of exposu... View full abstract»

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  • Characterisation of diode laser for optical interconnects

    Publication Year: 1988, Page(s):11/1 - 11/8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (132 KB)

    There is currently a great deal of interest in monolithic integration of diode lasers and laser drive circuitry to give directly modulated transmitters for optical interconnect. However, in practice, it is likely that the high speed links for optical interconnect will be initially realised using off-the-shelf GaAs components, and optical interconnects (light pipes or waveguides) which are then hyb... View full abstract»

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  • The optical exchange-network architectures

    Publication Year: 1988, Page(s):1/1 - 1/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (204 KB)

    Gives a brief overview of the requirements of optical interconnections within the BT exchange environment. The exchange interconnection infrastructure of the future will need to meet the demands of the emergence of new technology at an ever increasing pace. Already in the trunk network environment new synchronous optical fibre systems are being proposed only a short time after the realization of t... View full abstract»

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  • A high-speed D/A converter using optics

    Publication Year: 1988, Page(s):5/1 - 5/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (196 KB)

    The authors have proposed and demonstrated in preliminary manner the advantages of using optical techniques in D/A converters, to provide high accuracy conversion at potentially enormous speeds. The principle of the optical D/A converter proposed is shown schematically. An intensity-stabilized optical source, feeds a parallel array of N nominally identical modulators, whose transmissions are each ... View full abstract»

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  • An efficient compact star coupler for use in fibre optic transmission systems

    Publication Year: 1988, Page(s):4/1 - 4/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (240 KB)

    Demonstrates the operation of a 19×19 fibre optic star coupler which provides a small, cheap, passive, rugged and reliable component. The principles were tested with readily available components which were reasonably well matched, but not ideally so. The spread ion relative coupling coefficients was rather large at ±2dB, but this would undoubtedly be smaller in an optimized design, an... View full abstract»

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  • A 128×128 matrix electrically addressed ferroelectric liquid crystal spatial light modulator

    Publication Year: 1988, Page(s):15/1 - 15/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (124 KB)

    The operation and performance of a 128 by 128 matrix electrically addressed ferroelectric liquid crystal spatial light modulator are described. The limits to device performance are briefly discussed and an indication given of future devices which will be possible using this rapidly advancing technology View full abstract»

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  • The optical exchange-technology options

    Publication Year: 1988, Page(s):2/1 - 2/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (204 KB)

    In order to realize network architectures for the optical exchange, decisions must be made as to the component technology to be employed. The author assesses system requirements, such as fibre type and operating wavelength and examines electro-optic device technology for optical fibre equipment interconnections within exchanges View full abstract»

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  • IEE Colloquium on `Optical Interconnects' (Digest No.121)

    Publication Year: 1988
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (20 KB)

    The following topics were dealt with: optical interconnects for telephone exchanges; optical connection networks employing multiplexed crosspoints; couplers for fibre optic transmission systems; DIA convertors using optics; holographic interconnects; interchip interconnect and modulators for optical interconnects. Abstracts of individual papers can be found under the relevant classification in thi... View full abstract»

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