Optical interconnect for high speed processors
First Claim
1. An optical interconnect for a plurality of single-instruction-multiple-data (SIMD) processors, comprising:
- a controller;
a plurality of laser diodes, with each of said plurality of laser diodes operating at a different wavelength;
a first plurality of optical-switching devices with each optical-switching device of the first plurality of optical-switching devices connected respectively to a laser diode;
a fiber combiner, connected to said first plurality of optical-switching devices, for combining output light from said first plurality of optical-switching devices;
an optical fiber connected to said fiber combiner for carrying the output light from said fiber combiner;
a fiber splitter connected to said optical fiber for dividing the output light into a plurality of equal-length paths, with each equal-length path corresponding to each of said plurality of SIMD processors;
a second plurality of optical-switching devices connected to a plurality of outputs, respectively, of said fiber splitter, for modulating the output light;
a plurality of optical fibers connected to said second plurality of optical-switching devices, respectively, forming an input ring at an input plane of said optical interconnect;
a plurality of holographic-optical elements coupled to said input ring wherein each holographic-optical element reflects one light wavelength and is transparent to other light wavelengths;
a plurality of dove prisms coupled to said plurality of holographic-optical elements, responsive to a respective channel, for rotating an image about an optical axis with respect to the image formed at the input ring;
an output-ring array connected to said plurality of SIMD processors; and
a plurality of beamsplitters coupled to said plurality of dove prisms, respectively, for reflecting the selected optical channel to said output-ring array.
1 Assignment
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Accused Products
Abstract
An optical interconnect for use with SIMD processors, including holographic-optical elements, dove prisms, beamsplitters and a processor. Laser diodes, with each operating at a different wavelength, generate coherent-light beams at different wavelengths. A fiber combiner, an optical fiber and a fiber splitter are connected to divide output light from the laser diodes into equal path lengths. The output light is modulated by data from a respective SIMD processor. The output light forms an input ring at an input plane. Each holographic-optical element reflects only one wavelength of the output light. Dove prisms perform certain fixed interconnections. Beamsplitters reflect the light from the selected optical channel to an output-ring array.
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Citations
30 Claims
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1. An optical interconnect for a plurality of single-instruction-multiple-data (SIMD) processors, comprising:
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a controller; a plurality of laser diodes, with each of said plurality of laser diodes operating at a different wavelength; a first plurality of optical-switching devices with each optical-switching device of the first plurality of optical-switching devices connected respectively to a laser diode; a fiber combiner, connected to said first plurality of optical-switching devices, for combining output light from said first plurality of optical-switching devices; an optical fiber connected to said fiber combiner for carrying the output light from said fiber combiner; a fiber splitter connected to said optical fiber for dividing the output light into a plurality of equal-length paths, with each equal-length path corresponding to each of said plurality of SIMD processors; a second plurality of optical-switching devices connected to a plurality of outputs, respectively, of said fiber splitter, for modulating the output light; a plurality of optical fibers connected to said second plurality of optical-switching devices, respectively, forming an input ring at an input plane of said optical interconnect; a plurality of holographic-optical elements coupled to said input ring wherein each holographic-optical element reflects one light wavelength and is transparent to other light wavelengths; a plurality of dove prisms coupled to said plurality of holographic-optical elements, responsive to a respective channel, for rotating an image about an optical axis with respect to the image formed at the input ring; an output-ring array connected to said plurality of SIMD processors; and a plurality of beamsplitters coupled to said plurality of dove prisms, respectively, for reflecting the selected optical channel to said output-ring array.
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2. An optical interconnect for a plurality of single-instruction-multiple-data (SIMD) processors, comprising:
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first generating means for generating a control signal; second generating means for generating a plurality of coherent-light beams at a plurality of wavelengths, respectively; means responsive to the control signal, for selecting a single coherent-light beam at a single wavelength from the plurality of wavelengths as an output light; means for comprising output light from said selecting means, and for dividing the output light into a plurality of equal-length paths, with each equal-length path corresponding to each of said plurality of SIMD processors; means, responsive to data, for modulating the output light; means for forming an input ring at an input plane of said optical interconnect; first reflecting means for reflecting one light wavelength and transparent to other light wavelengths; means, responsive to the control signal, for rotating, at a given time, an image formed at said forming means; and second reflecting means for reflecting the rotated image to an output-ring array. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An optical interconnect for a plurality of single-instruction-multiple-data (SIMD) processors, said optical interconnect connected between an input ring at an input plane and an output-ring array, comprising:
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first generating means for generating a control signal; second generating means for generating a plurality of coherent-light beams at a plurality of wavelengths, respectively; means, responsive to the control signal, for selecting a single coherent-light beam at a single wavelength from the plurality of coherent light beams as an output light; means, responsive to data, for modulating the output light; first reflecting means, coupled to said input ring, for reflecting one light wavelength and for passing other light wavelengths; means, coupled to said first reflecting means, for rotating an image formed at said input ring; and second reflecting means, coupled to said rotating means, for reflecting the selected optical rotated image to said output-ring array. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. A method for optically interconnecting a plurality of single-instruction-multiple-data (SIMD) processors, comprising the steps of:
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generating a control signal; generating a plurality of coherent-light beams at a plurality of wavelengths, respectively; selecting a single coherent-light beam at a single wavelength from the plurality of wavelengths; combining the selected coherent-light beam from the plurality of coherent-light beams as an output light; dividing the output light for each of the plurality of wavelengths into a plurality of equal-length paths, with each of the equal-length paths corresponding to each of the SIMD processors; modulating, using data from the SIMD processors corresponding to the selected single wavelength, the output light; forming, with the output light at a respective wavelength an input ring at an input plane; reflecting, from the input plane, the output light; rotating, in response to the control signal, an image formed at the input plane; and reflecting the rotated image to an output-ring array.
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30. A method for optically interconnecting a plurality of single-instruction-multiple-data (SIMD) processors, comprising the steps of:
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generating a control signal; generating a plurality of coherent-light beams at a plurality of wavelengths, respectively; selecting a single coherent-light beam at a single wavelength from the plurality of wavelengths as an output light; modulating, using data from the SIMD processors corresponding to the selected single wavelength, the output light; forming, with the output light at a respective wavelength an input ring at an input plane; reflecting, from the input plane, the output light; rotating an image formed at the input plane; and reflecting the rotated image to an output-ring array.
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Specification