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US 5,247,593 AGranted
Programmable optical crossbar switch
AssigneeTexas Instruments Incorporated
InventorsTsen-Hwang Lin, Falvey Malarcher
Life of this patent
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Abstract
This is a crossbar switch which comprises: X rows by Y columns of modular optical switches each comprising X or more channel inputs and X or more channel outputs where X is greater than one; and each of columns 1 to Y-1 of the modular optical switches having 1/Xth of the channel outputs optically connected to 1/Xth of the channel inputs of each of the modular optical switches in a next column. Other methods and devices are disclosed.
Claims9
A crossbar switch comprising:
- a. X rows by Y columns of modular optical switches;
- b. each of said modular optical switches comprising:
- X or more channel inputs and X or more channel outputs where X is greater than one a board comprising spatial light modulators, and a hologram such that programmable free-space optical interconnects may be performed internally in said modular switch using said spatial light modulators and said hologram board, and
- c. each of columns 1 to Y-1 of said modular optical switches having said channel outputs optically connected to said channel inputs of said modular optical switches in a next column.
1 more element
Dependencies are inferred from the claim text.