Training of photonic neural networks through in situ backpropagation

We provide a protocol for training photonic neural networks based on adjoint methods. The gradient of the network with respect to its tunable degrees of freedom is computed by physically backpropagating an optical error signal. © 2019 The Author(s)

physics.optics cs.LG cs.NE physics.app-ph physics.data-an Physics Engineering Computer Science

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Patents near this paper

OPTICAL NEURAL NETWORK AND METHODUS 4,959,532 · HUGHES AIRCRAFT COMPANY, A CORP. OF DE · 1990 ADAPTIVE OPTICAL NEURAL NETWORKUS 4,963,725 · ROCKWELL INTERNATIONAL CORPORATION, · 1990 Apparatus and Methods for Optical Neural NetworkUS 10,268,232 · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · 2019 APPARATUS AND METHODS FOR OPTICAL NEURAL NETWORKUS 10,768,659 · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · 2020 APPARATUS AND METHODS FOR OPTICAL NEURAL NETWORKUS 11,334,107 · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · 2022

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