Free-space angle-multiplexed optical interconnect network
First Claim
1. A point-to-point optical interconnection network for coupling a predetermined transmitting element contained within an array of arrays of transmitting elements with a predetermined receiving element contained within an array of receiving elements, said interconnection network comprising:
- a two-dimensional coplanar chip array (12) of coplanar two-dimensional arrays (13) of vertical cavity surface emitting lasers (14);
a coplanar two-dimensional array of photodetectors (18);
said photodetectors (18) being positionally associated with said lasers such that a laser at the j, k position in any of said arrays (13) corresponds with a photodetector at the j, k position in said array of photodetectors (18); and
a holographic imager, disposed between said coplanar two-dimensional chip array and said two-dimensional coplanar array of photodetectors such that light emitted from the laser at the j, k position in any of said two-dimensional arrays (13) of vertical cavity surface emitting lasers (14) is received only at the photodetector in the j, k positions of said array of photodetectors.
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Accused Products
Abstract
A point-to-point optical network for interconnecting processing elements uses a two-dimensional array of chips, each of which includes a two-dimensional array of lasers that are used to target a two-dimensional array of photodetectors. A two-dimensional array of lenslets together with a spherical lens are used to focus light from a laser in the j, k position in any one of the laser arrays in any one of the chips on the particular photodetector in the j,k position in the photodetector array.
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Citations
5 Claims
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1. A point-to-point optical interconnection network for coupling a predetermined transmitting element contained within an array of arrays of transmitting elements with a predetermined receiving element contained within an array of receiving elements, said interconnection network comprising:
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a two-dimensional coplanar chip array (12) of coplanar two-dimensional arrays (13) of vertical cavity surface emitting lasers (14); a coplanar two-dimensional array of photodetectors (18);
said photodetectors (18) being positionally associated with said lasers such that a laser at the j, k position in any of said arrays (13) corresponds with a photodetector at the j, k position in said array of photodetectors (18); and
a holographic imager, disposed between said coplanar two-dimensional chip array and said two-dimensional coplanar array of photodetectors such that light emitted from the laser at the j, k position in any of said two-dimensional arrays (13) of vertical cavity surface emitting lasers (14) is received only at the photodetector in the j, k positions of said array of photodetectors. - View Dependent Claims (2)
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3. A point-to-point optical interconnection network for coupling a predetermined transmitting element contained within an array of arrays of transmitting elements with a predetermined receiving element contained within an array of receiving elements, said interconnection network comprising:
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a two-dimensional coplanar chip array (12) of coplanar two-dimensional arrays (13) of vertical cavity surface emitting lasers (14); a coplanar two-dimensional array of photodetectors (18); said photodetectors (18) being positionally associated with said lasers such that a laser at the j, k position in any of said two-dimensional arrays (13) corresponds with a photodetector at the j, k position in said array of photodetectors (18); and an imager, disposed between said two-dimensional coplanar chip array and said two-dimensional array of photodetectors, said imager including a two-dimensional array of lenslets disposed between said chip array and said array of photodetectors and a macrolens disposed between said two-dimensional array of lenslets and said array of photodetectors such that light emitted from the vertical cavity surface emitting laser in the j, k position in any of said two-dimensional arrays (13) of vertical cavity surface emitting lasers (14) is first collimated by the lenslet in the array of lenslets corresponding to said any of said two-dimensional arrays (13) and then focused into a two-dimensional beam of light by said macrolens such the light emitted is received only at the photodetector in the j, k position of said array of photodetectors. - View Dependent Claims (4, 5)
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Specification