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Programmable photonic processing

  • US 10,619,993 B2
  • Filed: 06/06/2019
  • Issued: 04/14/2020
  • Est. Priority Date: 06/06/2014
  • Status: Active Grant
First Claim
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1. A photonic device comprising:

  • a semiconductor substrate;

    a plurality of interconnected variable beam splitters, fabricated in the semiconductor substrate, configured to perform a linear optical transformation on at least one optical mode, the plurality of interconnected variable beam splitters having a plurality of input waveguides configured to receive the at least one optical mode and a plurality of output waveguides configured to output the at least one optical mode after the linear optical transformation;

    a plurality of output detectors, fabricated in the semiconductor substrate in optical communication with the plurality of output waveguides, the plurality of output detectors comprising at least one output detector in optical communication with a first output waveguide of at least one of the interconnected variable beam splitters and configured to measure an optical power of light present in the first output waveguide; and

    control circuitry, operably coupled to the plurality of interconnected variable beam splitters to control the plurality of interconnected variable beam splitters.

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