Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Partial coherence enhances parallelized photonic computing

Bowei Dong, Frank Brückerhoff‐Plückelmann, Lennart Meyer, Jelle Dijkstra, Ivonne Bente, Daniel Wendland, Akhil Varri, Samarth Aggarwal, Nikolaos Farmakidis, Mengyun Wang, Guoce Yang, June Sang Lee, Yuhan He, Emmanuel Gooskens, Dim‐Lee Kwong, Peter Bienstman, Wolfram H. P. Pernice, Harish Bhaskaran

Nature · 2024

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Summary

. Our study introduces a photonic convolutional processing system that takes advantage of partially coherent light to boost computing parallelism without substantially sacrificing accuracy, potentially enabling larger-size photonic tensor cores. The reduction of the degree of coherence optimizes bandwidth use in the photonic convolutional processing system. This breakthrough challenges the traditional belief that coherence is essential or even advantageous in integrated photonic accelerators, thereby enabling the use of light sources with less rigorous feedback control and thermal-management requirements for high-throughput photonic computing. Here we demonstrate such a system in two photonic platforms for computing applications: a photonic tensor core using phase-change-material photonic

Source type
Peer-reviewed study
DOI
10.1038/s41586-024-07590-y
Catalogue ID
SNmoj7nq36-mciiju
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