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- W4304957538 abstract "Silicon photonics is promising for artificial neural networks computing owing to its superior interconnect bandwidth, low energy consumption and scalable fabrication. However, the lack of silicon-integrated and monitorable optical neurons limits its revolution in large-scale artificial neural networks. Here, we highlight nonlinear germanium-silicon photodiodes to construct on-chip optical neurons and a self-monitored all-optical neural network. With specifically engineered optical-to-optical and optical-to-electrical responses, the proposed neuron merges the all-optical activation and non-intrusive monitoring functions in a compact footprint of 4.3 × 8 μm2. Experimentally, a scalable three-layer photonic neural network enables in situ training and learning in object classification and semantic segmentation tasks. The performance of this neuron implemented in a deep-scale neural network is further confirmed via handwriting recognition, achieving a high accuracy of 97.3%. We believe this work will enable future large-scale photonic intelligent processors with more functionalities but simplified architecture." @default.
- W4304957538 created "2022-10-14" @default.
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- W4304957538 date "2022-10-13" @default.
- W4304957538 modified "2023-10-17" @default.
- W4304957538 title "Nonlinear germanium-silicon photodiode for activation and monitoring in photonic neuromorphic networks" @default.
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- W4304957538 doi "https://doi.org/10.1038/s41467-022-33877-7" @default.
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