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All-Optical Neural Network Uses Parallel Computation to Speed Problem-Solving

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In a step toward making the use of large-scale optical neural networks practical, researchers at The Hong Kong University of Science and Technology have demonstrated a multilayer all-optical artificial neural network. In conventional hybrid optical neural networks, optical components are typically used for linear operations, while nonlinear activation functions — the functions that simulate the way neurons in the human brain respond — are implemented electronically, because nonlinear optics usually require high-power lasers that are difficult to implement in an optical...Read full article

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