Integrated photonic neural network with on-chip backpropagation training - Nature

Nature, Published online: 18 March 2026; doi:10.1038/s41586-026-10262-8An integrated photonic deep neural network was trained end-to-end with on-chip gradient-descent backpropagation, and all linea...

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Integrated photonic neural network with on-chip backpropagation training - Nature

Source: Nature

Nature, Published online: 18 March 2026; doi:10.1038/s41586-026-10262-8An integrated photonic deep neural network was trained end-to-end with on-chip gradient-descent backpropagation, and all linear and nonlinear computations were performed on a single photonic chip, resulting in a reliable performance despite on-chip errors and variations.