Partial coherence enhances parallelized photonic computing

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

doi:10.1038/s41586-024-07590-y

articleNatureJul 31, 2024HYBRID OA

Partial coherence enhances parallelized photonic computing

BDBowei Dong FBFrank Brückerhoff‐Plückelmann LMLennart Meyer JDJelle Dijkstra IBIvonne Bente

Agency for Science, Technology and Research · University of Oxford · +5 more institutions

PubMed

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Abstract

Abstract Advancements in optical coherence control 1–5 have unlocked many cutting-edge applications, including long-haul communication, light detection and ranging (LiDAR) and optical coherence tomography 6–8 . Prevailing wisdom suggests that using more coherent light sources leads to enhanced system performance and device functionalities 9–11 . 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…

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Topics & keywords

Topics

Keywords

Photonics
Computer science
Silicon photonics
Coherence (philosophical gambling strategy)
Optical coherence tomography
Electronic engineering
Optics
Physics

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