Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform

Abstract Sharing the hardware platform between diverse information systems to establish full cooperation among different functionalities has attracted substantial attention. However, broadband multifunctional integrated systems with large operating frequency ranges are challenging due to the bandwid...

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Main Authors: Na Qian, Defu Zhou, Haowen Shu, Ming Zhang, Xingjun Wang, Daoxin Dai, Xiao Deng, Weiwen Zou
Format: Article
Language:English
Published: Nature Publishing Group 2025-02-01
Series:Light: Science & Applications
Online Access:https://doi.org/10.1038/s41377-025-01753-w
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author Na Qian
Defu Zhou
Haowen Shu
Ming Zhang
Xingjun Wang
Daoxin Dai
Xiao Deng
Weiwen Zou
author_facet Na Qian
Defu Zhou
Haowen Shu
Ming Zhang
Xingjun Wang
Daoxin Dai
Xiao Deng
Weiwen Zou
author_sort Na Qian
collection DOAJ
description Abstract Sharing the hardware platform between diverse information systems to establish full cooperation among different functionalities has attracted substantial attention. However, broadband multifunctional integrated systems with large operating frequency ranges are challenging due to the bandwidth and computing speed restrictions of electronic circuitry. Here, we report an analog parallel processor (APP) based on the silicon photonic platform that directly discretizes and parallelizes the broadband signal in the analog domain. The APP first discretizes the signal with the optical frequency comb and then adopts optical dynamic phase interference to reassign the analog signal into 2N parallel sequences. Via photonic analog parallelism, data rate and data volume in each sequence are simultaneously compressed, which mitigates the requirement on each parallel computing core. Moreover, the fusion of the outputs from each computing core is equivalent to directly processing broadband signals. In the proof-of-concept experiment, two-channel analog parallel processing of broadband radar signals and high-speed communication signals is implemented on the single photonic integrated circuit. The bandwidth of broadband radar signal is 6 GHz and the range resolution of 2.69 cm is achieved. The wireless communication rate of 8 Gbit/s is also validated. Breaking the bandwidth and speed limitations of the single-computing core along with further exploring the multichannel potential of this architecture, we anticipate that the proposed APP will accelerate the development of powerful opto-electronic processors as critical support for applications such as satellite networks and intelligent driving.
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spelling doaj-art-ce0ee43c5a9f47eeb50ca15dd2000c562025-02-09T12:55:02ZengNature Publishing GroupLight: Science & Applications2047-75382025-02-0114111110.1038/s41377-025-01753-wAnalog parallel processor for broadband multifunctional integrated system based on silicon photonic platformNa Qian0Defu Zhou1Haowen Shu2Ming Zhang3Xingjun Wang4Daoxin Dai5Xiao Deng6Weiwen Zou7State Key Laboratory of Advanced Optical Communication Systems and Networks, Intelligent Microwave Lightwave Integration Innovation Center (imLic), Department of Electronic Engineering, Shanghai Jiao Tong UniversityState Key Laboratory of Advanced Optical Communication Systems and Networks, Intelligent Microwave Lightwave Integration Innovation Center (imLic), Department of Electronic Engineering, Shanghai Jiao Tong UniversityState Key Laboratory of Advanced Optical Communications System and Networks, Department of Electronics, School of Electronics Engineering and Computer Science, Peking UniversityState Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang UniversityState Key Laboratory of Advanced Optical Communications System and Networks, Department of Electronics, School of Electronics Engineering and Computer Science, Peking UniversityState Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang UniversityState Key Laboratory of Advanced Optical Communication Systems and Networks, Intelligent Microwave Lightwave Integration Innovation Center (imLic), Department of Electronic Engineering, Shanghai Jiao Tong UniversityState Key Laboratory of Advanced Optical Communication Systems and Networks, Intelligent Microwave Lightwave Integration Innovation Center (imLic), Department of Electronic Engineering, Shanghai Jiao Tong UniversityAbstract Sharing the hardware platform between diverse information systems to establish full cooperation among different functionalities has attracted substantial attention. However, broadband multifunctional integrated systems with large operating frequency ranges are challenging due to the bandwidth and computing speed restrictions of electronic circuitry. Here, we report an analog parallel processor (APP) based on the silicon photonic platform that directly discretizes and parallelizes the broadband signal in the analog domain. The APP first discretizes the signal with the optical frequency comb and then adopts optical dynamic phase interference to reassign the analog signal into 2N parallel sequences. Via photonic analog parallelism, data rate and data volume in each sequence are simultaneously compressed, which mitigates the requirement on each parallel computing core. Moreover, the fusion of the outputs from each computing core is equivalent to directly processing broadband signals. In the proof-of-concept experiment, two-channel analog parallel processing of broadband radar signals and high-speed communication signals is implemented on the single photonic integrated circuit. The bandwidth of broadband radar signal is 6 GHz and the range resolution of 2.69 cm is achieved. The wireless communication rate of 8 Gbit/s is also validated. Breaking the bandwidth and speed limitations of the single-computing core along with further exploring the multichannel potential of this architecture, we anticipate that the proposed APP will accelerate the development of powerful opto-electronic processors as critical support for applications such as satellite networks and intelligent driving.https://doi.org/10.1038/s41377-025-01753-w
spellingShingle Na Qian
Defu Zhou
Haowen Shu
Ming Zhang
Xingjun Wang
Daoxin Dai
Xiao Deng
Weiwen Zou
Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform
Light: Science & Applications
title Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform
title_full Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform
title_fullStr Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform
title_full_unstemmed Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform
title_short Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform
title_sort analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform
url https://doi.org/10.1038/s41377-025-01753-w
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