Premium
High‐Throughput Multichannel Parallelized Diffraction Convolutional Neural Network Accelerator
Author(s) -
Hu Zibo,
Li Shurui,
Schwartz Russell L. T.,
SolyanikGorgone Maria,
Miscuglio Mario,
Gupta Puneet,
Sorger Volker J.
Publication year - 2022
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.202200213
Subject(s) - speedup , computer science , convolution (computer science) , convolutional neural network , throughput , parallel computing , computation , fourier transform , fast fourier transform , diffraction , parallel processing , computational science , optics , algorithm , artificial neural network , artificial intelligence , telecommunications , physics , wireless , quantum mechanics
Convolutional neural networks are paramount in image and signal processing, and are responsible for the majority of image recognition power consumption today, concentrated mainly in convolution computations. With convolution operations being computationally intensive, next‐generation hardware accelerators need to offer parallelization and high efficiency. Diffractive optics offers the promise of low‐latency, highly parallel convolution operations. However, thus far parallelism is only partially harvested, thereby significantly underdelivering in comparison to its throughput potential. Here, a parallelized operation high‐throughput Fourier optic convolutional accelerator is demonstrated. For the first time, simultaneous processing of multiple kernels in Fourier domain enabled by optical diffraction orders is achieved alongside input parallelism. The proposed approach can offer ≈100× speedup over the previous generation optical diffraction‐based processor and 10× speedup over other state‐of‐the‐art optical Fourier classifiers.