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Scalable Silicon Photonic Switching Architectures for Optical Networks

  • US 20170064417A1
  • Filed: 11/09/2016
  • Published: 03/02/2017
  • Est. Priority Date: 05/28/2014
  • Status: Active Grant
First Claim
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1. A switching fabric comprising:

  • a plurality of ports including input ports and output ports; and

    a plurality of photonic elements coupled in-between the input ports and the output ports, the plurality of photonic elements for switching signals between the input ports and the output ports, wherein the plurality of photonic elements are arranged into an architecture that includes a first outer-most switching column comprising rows of one-by-two (1×

    2) photonic elements coupled to the input ports, a second outermost column comprising rows of two-by-one (2×

    1) photonic elements coupled to the output ports, two intermediate switching stages each of which including at least one column comprising rows of two-by-two (2×

    2) switching elements, and a central switching column comprising rows of one-by-two (1×

    2) photonic elements coupled to two-by-one (2×

    1) photonic elements.

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