SYSTEMS AND METHODS FOR COHERENT PHOTONIC CROSSBAR ARRAYS
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United States of America
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Issued Date -
Nov 7, 2024
app pub date -
Sep 13, 2022
filing date -
Sep 13, 2022
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Abstract
A device for performing vector operations is provided. The device includes a photonic crossbar array. The photonic crossbar array includes a plurality of unit cells. One or more of the plurality of unit cells includes a beam splitter, a first photodetector, and a second photodetector. The one or more unit cells are configured to output, as a unit cell output, a third output of the optical signal and a fourth output of the optical signal. The device includes a controller configured to encode a first vector in time-varying amplitudes or time-varying phases of a first electric field, encode a second vector in time-varying amplitudes or time-varying phases of a second electric field, and determine a result of multiplication of the first vector and the second vector based on the unit cell output from the one or more of the plurality of unit cells.
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