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

Na Qian; Defu Zhou; Haowen Shu; Ming Zhang; Xingjun Wang; Daoxin Dai; Xiao Deng; Weiwen Zou

doi:10.1038/s41377-025-01753-w

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

Original Articles

- Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform
- Light: Science & Applications Vol. 14, Issue 3, Pages: 746-756(2025)
- Affiliations：
  
  1.State Key Laboratory of Advanced Optical Communication Systems and Networks, Intelligent Microwave Lightwave Integration Innovation Center (imLic), Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
  2.State Key Laboratory of Advanced Optical Communications System and Networks, Department of Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing, China
  3.State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, China
- Author bio：
  
  Weiwen Zou (wzou@sjtu.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-01753-w
  CLC：
- Received：27 May 2024，
  
  Revised：08 January 2025，
  
  Accepted：2025-01-09，
  
  Published Online：07 February 2025，
  
  Published：31 March 2025
- Accepted：
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Qian, N. et al. Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform. Light: Science & Applications, 14, 746-756 (2025).
DOI：

Qian, N. et al. Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform. Light: Science & Applications, 14, 746-756 (2025). DOI： 10.1038/s41377-025-01753-w.

摘要

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 photoni

c 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 2

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.

关键词

Keywords

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