Multi-dimensional photonic accelerator based on multi-plane light processing (MPLP)

Alireza Fardoost; Fatemeh Ghaedi Vanani; Seth Smith-Dryden; Shree Thapa; Zheyuan Zhu; Shuo Pang; Guifang Li

doi:10.1117/12.2692984

13 March 2024 Multi-dimensional photonic accelerator based on multi-plane light processing (MPLP)

Alireza Fardoost, Fatemeh Ghaedi Vanani, Seth Smith-Dryden, Shree Thapa, Zheyuan Zhu, Shuo Pang, Guifang Li

Proceedings Volume PC12903, AI and Optical Data Sciences V; PC1290302 (2024) https://doi.org/10.1117/12.2692984
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Extending the multi-plane light conversion (MPLC) technique, we propose and demonstrate a 3D micro-optic system capable of performing matrix/tensor multiplications. Our proposed approach, called multi-plane light processing (MPLP), is passive and utilizes all degrees of freedom of light which makes it well-suited to surpass electronic accelerators in both scalability and energy efficiency. MPLP is an all-in-one system capable of spatial mode conversion and multiplexing, wavelength demultiplexing, hybrid coupling, and optical routing. As a result, the proposed device can perform matrix/tensor multiplications in a single clock cycle with tens of GHz speed limited by the optical modulators and photodetectors’ bandwidth. We have experimentally demonstrated proof-of-concept MPLP utilizing a spatial mode modulator performing 2×2 matrix-matrix multiplication and discuss the scaling methods to enhance its computation power. We envision the proposed PTA competing with electronic accelerators for large-scale and power-efficient artificial intelligence (AI) applications.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Alireza Fardoost, Fatemeh Ghaedi Vanani, Seth Smith-Dryden, Shree Thapa, Zheyuan Zhu, Shuo Pang, and Guifang Li "Multi-dimensional photonic accelerator based on multi-plane light processing (MPLP)", Proc. SPIE PC12903, AI and Optical Data Sciences V, PC1290302 (13 March 2024); https://doi.org/10.1117/12.2692984

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KEYWORDS

Spatial light modulators

Artificial intelligence

Energy efficiency

Photomasks

Micro optics

Pluto

Polarization

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