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Optical switch architecture

  • US 10,028,041 B2
  • Filed: 03/16/2017
  • Issued: 07/17/2018
  • Est. Priority Date: 04/24/2015
  • Status: Active Grant
First Claim
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1. An optoelectronic switch for transferring a signal from an input device to an output device, the optoelectronic switch comprising:

  • an array of leaf switches, the array having L dimensions, each of the leaf switches having a radix R, R and L being integers greater than 1, the size of the array being less, in a reduced dimension of the L dimensions, than in each of the other dimensions of the L dimensions, each of the leaf switches having an associated L-tuple of coordinates giving its location in the array with respect to each of the L dimensions; and

    a plurality of spine switches,wherein the array consists of a plurality of overlapping sub-arrays, each of the sub-arrays being associated with a dimension of the L dimensions and consisting of Ri of the leaf switches, wherein Ri is the size of the array in the dimension associated with the sub-array, the coordinates of the leaf switches of the sub-array differing only in respect of the dimension associated with the sub-array, each of the sub-arrays being connected to a respective plurality of spine switches of the plurality of spine switches,wherein each of the leaf switches is a member of L sub-arrays of the sub-arrays, each of the L sub-arrays being associated with a different one of the L dimensions,wherein each of the leaf switches has;

    a plurality of client ports for connecting to an input device or an output device; and

    a plurality of fabric ports for connecting to the spine switches,wherein each spine switch has R fabric ports for connecting to fabric ports of the leaf switches of the array, andwherein each of the spine switches connected to a first sub-array of the plurality of sub-arrays, the first sub-array being associated with the reduced dimension, has;

    a connection to each of the leaf switches in the sub-array, anda plurality of connections to at least one of the leaf switches in the sub-array.

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