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Donate arxiv logo > physics > arXiv:2506.14272 [ ] Help | Advanced Search [All fields ] Search arXiv logo Cornell University Logo [ ] GO quick links * Login * Help Pages * About Physics > Optics arXiv:2506.14272 (physics) [Submitted on 17 Jun 2025] Title:GHz spiking neuromorphic photonic chip with in-situ training Authors:Jinlong Xiang, Xinyuan Fang, Jie Xiao, Youlve Chen, An He, Yaotian Zhao, Zhenyu Zhao, Yikai Su, Min Gu, Xuhan Guo View a PDF of the paper titled GHz spiking neuromorphic photonic chip with in-situ training, by Jinlong Xiang and 9 other authors View PDF Abstract:Neuromorphic photonic computing represents a paradigm shift for next-generation machine intelligence, yet critical gaps persist in emulating the brain's event-driven, asynchronous dynamics,a fundamental barrier to unlocking its full potential. Here, we report a milestone advancement of a photonic spiking neural network (PSNN) chip, the first to achieve full-stack brain-inspired computing on a complementary metal oxide semiconductor-compatible silicon platform. The PSNN features transformative innovations of gigahertz-scale nonlinear spiking dynamics,in situ learning capacity with supervised synaptic plasticity, and informative event representations with retina-inspired spike encoding, resolving the long-standing challenges in spatiotemporal data integration and energy-efficient dynamic processing. By leveraging its frame-free, event-driven working manner,the neuromorphic optoelectronic system achieves 80% accuracy on the KTH video recognition dataset while operating at ~100x faster processing speeds than conventional frame-based approaches. This work represents a leap for neuromorphic computing in a scalable photonic platform with low latency and high throughput, paving the way for advanced applications in real-time dynamic vision processing and adaptive decision-making, such as autonomous vehicles and robotic navigation. Comments: 18 pages, 4 figures Subjects: Optics (physics.optics) Cite as: arXiv:2506.14272 [physics.optics] (or arXiv:2506.14272v1 [physics.optics] for this version) https://doi.org/10.48550/arXiv.2506.14272 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Xuhan Guo [view email] [v1] Tue, 17 Jun 2025 07:37:25 UTC (4,396 KB) Full-text links: Access Paper: View a PDF of the paper titled GHz spiking neuromorphic photonic chip with in-situ training, by Jinlong Xiang and 9 other authors * View PDF * Other Formats license icon view license Current browse context: physics.optics < prev | next > new | recent | 2025-06 Change to browse by: physics References & Citations * NASA ADS * Google Scholar * Semantic Scholar a export BibTeX citation Loading... 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