Multi-functional broadband diffractive neural network with a single spatial light modulator

Diffractive neural networks (DNNs) are emerging as a novel optical computing architecture that combines wave optics with deep-learning methods for high-speed parallel information processing. Herein, we report a reflection type, multi-functional, broadband DNN design. It consists of two phase-modulat...

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Main Authors: Bolin Li, Yinfei Zhu, Jinlei Fei, Runshi Zheng, Min Gu, Jian Lin
Format: Article
Language:English
Published: AIP Publishing LLC 2025-01-01
Series:APL Photonics
Online Access:http://dx.doi.org/10.1063/5.0245832
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author Bolin Li
Yinfei Zhu
Jinlei Fei
Runshi Zheng
Min Gu
Jian Lin
author_facet Bolin Li
Yinfei Zhu
Jinlei Fei
Runshi Zheng
Min Gu
Jian Lin
author_sort Bolin Li
collection DOAJ
description Diffractive neural networks (DNNs) are emerging as a novel optical computing architecture that combines wave optics with deep-learning methods for high-speed parallel information processing. Herein, we report a reflection type, multi-functional, broadband DNN design. It consists of two phase-modulation layers based on a single spatial light modulator and a mirror facing it. The power efficiency of this design is more than 16 times higher than that of the cascaded structure utilizing beam splitters. It can function either as a two-layer DNN or a one-layer DNN with the other serving as an information input layer. Single- and dual-wavelength filtering and focusing, as well as spatial wavelength demultiplexing of supercontinuum, are experimentally demonstrated using the two-layer DNN, whereas the one-layer DNN is experimentally demonstrated by the classification of hand-written digits, which are input by the first layer via holographic imaging. The designed DNN could operate independently or be readily integrated with other optical systems and may find applications in spectroscopy, microscopy, and information technology.
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institution Kabale University
issn 2378-0967
language English
publishDate 2025-01-01
publisher AIP Publishing LLC
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series APL Photonics
spelling doaj-art-7bd0384e115d4961b0f86a37e0cd14422025-02-03T16:36:22ZengAIP Publishing LLCAPL Photonics2378-09672025-01-01101016115016115-910.1063/5.0245832Multi-functional broadband diffractive neural network with a single spatial light modulatorBolin Li0Yinfei Zhu1Jinlei Fei2Runshi Zheng3Min Gu4Jian Lin5School of Artificial Intelligence Science and Technology, University of Shanghai for Science and Technology, Shanghai, ChinaInstitute of Photonic Chips, University of Shanghai for Science and Technology, Shanghai, ChinaInstitute of Photonic Chips, University of Shanghai for Science and Technology, Shanghai, ChinaSchool of Artificial Intelligence Science and Technology, University of Shanghai for Science and Technology, Shanghai, ChinaSchool of Artificial Intelligence Science and Technology, University of Shanghai for Science and Technology, Shanghai, ChinaSchool of Artificial Intelligence Science and Technology, University of Shanghai for Science and Technology, Shanghai, ChinaDiffractive neural networks (DNNs) are emerging as a novel optical computing architecture that combines wave optics with deep-learning methods for high-speed parallel information processing. Herein, we report a reflection type, multi-functional, broadband DNN design. It consists of two phase-modulation layers based on a single spatial light modulator and a mirror facing it. The power efficiency of this design is more than 16 times higher than that of the cascaded structure utilizing beam splitters. It can function either as a two-layer DNN or a one-layer DNN with the other serving as an information input layer. Single- and dual-wavelength filtering and focusing, as well as spatial wavelength demultiplexing of supercontinuum, are experimentally demonstrated using the two-layer DNN, whereas the one-layer DNN is experimentally demonstrated by the classification of hand-written digits, which are input by the first layer via holographic imaging. The designed DNN could operate independently or be readily integrated with other optical systems and may find applications in spectroscopy, microscopy, and information technology.http://dx.doi.org/10.1063/5.0245832
spellingShingle Bolin Li
Yinfei Zhu
Jinlei Fei
Runshi Zheng
Min Gu
Jian Lin
Multi-functional broadband diffractive neural network with a single spatial light modulator
APL Photonics
title Multi-functional broadband diffractive neural network with a single spatial light modulator
title_full Multi-functional broadband diffractive neural network with a single spatial light modulator
title_fullStr Multi-functional broadband diffractive neural network with a single spatial light modulator
title_full_unstemmed Multi-functional broadband diffractive neural network with a single spatial light modulator
title_short Multi-functional broadband diffractive neural network with a single spatial light modulator
title_sort multi functional broadband diffractive neural network with a single spatial light modulator
url http://dx.doi.org/10.1063/5.0245832
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