Laser & Optoelectronics Progress, Volume. 62, Issue 17, 1739006(2025)

Large-Scale Spatial Photonic Ising Machines (Invited)

Wenjia Zhang*, Xin Ye, Shaomeng Wang, Wenchen Sun, Jinmin Yang, and Zuyuan He
Author Affiliations
  • State Key Laboratory of Photonics and Communications, Shanghai Jiao Tong University, Shanghai 200240, China
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    Facing the challenge of efficiently and accurately solving large-scale combinatorial optimization problems, spatial photonic Ising machines, by leveraging capabilities of space-division multiplexing for large-scale implementation, an intuitive and straightforward fully-connected Ising mapping mechanism, and programmable combinatorial optimization approaches, have emerged as a significant technological path for the deployment and validation of Ising machines, receiving widespread attention from both academia and industry. This paper introduces the photonic Ising mapping principle of spatial photonic Ising machines, the main technical challenges, and future research prospects. It especially focuses on three key technical issues: flexible spatial photonic Ising mapping methods, general-purpose spatial photonic Ising machine architecture, and noise-enhanced photonic Ising optimization methods.

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    Wenjia Zhang, Xin Ye, Shaomeng Wang, Wenchen Sun, Jinmin Yang, Zuyuan He. Large-Scale Spatial Photonic Ising Machines (Invited)[J]. Laser & Optoelectronics Progress, 2025, 62(17): 1739006

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    Paper Information

    Category: AI for Optics

    Received: Apr. 21, 2025

    Accepted: May. 26, 2025

    Published Online: Sep. 11, 2025

    The Author Email: Wenjia Zhang (wenjia.zhang@sjtu.edu.cn)

    DOI:10.3788/LOP251055

    CSTR:32186.14.LOP251055

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