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2025 ; 14
(1
): 303
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Photonics and microwaves merge to improve computing flexibility
#MMPMID40908340
Wang H
; Hu G
Light Sci Appl
2025[Sep]; 14
(1
): 303
PMID40908340
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In artificial neural networks, data structures usually exist in the form of
vectors, matrices, or higher-dimensional tensors. However, traditional electronic
computing architectures are limited by the bottleneck of separation of storage
and computing, making it difficult to efficiently handle large-scale tensor
operations. The research team has developed a photonic tensor processing unit
based on a single microring resonator, which performs tensor convolution
operations in multiple dimensions of time, wavelength, and microwave frequency by
precisely adjusting the operating state of multi-wavelength lasers. This
innovative design increases the photonic computing density to 34.04 TOPS/mm²,
significantly surpassing the performance level of existing photonic computing
chips.