High-spatiotemporal-resolution distributed Brillouin sensing with transient acoustic wave

Yin Zhou; Yuan Cheng; Jia Ye; Zonglei Li; Haijun He; Wei Pan; Bin Luo; Lianshan Yan

doi:10.1038/s41377-025-01848-4

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High-spatiotemporal-resolution distributed Brillouin sensing with transient acoustic wave

Original Articles

- High-spatiotemporal-resolution distributed Brillouin sensing with transient acoustic wave
- Light: Science & Applications Vol. 14, Issue 8, Pages: 2198-2212(2025)
- Affiliations：
  
  1.Center for Information Photonics & Communications, School of Information Science & Technology, Southwest Jiaotong University, Chengdu 610031 Sichuan, China
  2.Department of Automation, Tsinghua University, Beijing 100084, China
  3.School of Artificial Intelligence, Shanghai Jiao Tong University, Shanghai 200030, China
  4.Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
- Author bio：
  
  Lianshan Yan (lsyan@home.swjtu.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-01848-4
  CLC：
- Received：12 December 2024，
  
  Revised：17 March 2025，
  
  Accepted：21 March 2025，
  
  Published Online：03 June 2025，
  
  Published：31 August 2025
- Accepted：
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Zhou, Y. et al. High-spatiotemporal-resolution distributed Brillouin sensing with transient acoustic wave. Light: Science & Applications, 14, 2198-2212 (2025).
DOI：

Zhou, Y. et al. High-spatiotemporal-resolution distributed Brillouin sensing with transient acoustic wave. Light: Science & Applications, 14, 2198-2212 (2025). DOI： 10.1038/s41377-025-01848-4.

摘要

Abstract

Real-time wide-area environment sensing is crucial for accessing open-world information streams from nature and human society. As a transformative technique distinct from electrical sensors

distributed optical fiber sensing especially for Brillouin scattering-based paradigm has shown superior bandwidth

power

and sensing range. Still

it suffers from insufficient resolution and timeliness to characterize remote dynamic events. Here we develop TABS—a transient acoustic wave-based Brillouin optical time domain analysis sensor

supporting long-range high-spatiotemporal-resolution distributed sensing. By designing a functionally synergistic sensor architecture

TABS elaborately leverages wideband and time-weighted energy transformation properties of a transient acousto-optic interaction to breaking through Brillouin-energy-utilization-efficiency bottleneck

enabling enhancements in overall sensing performance. In the experiment

TABS has achieved a 37-cm spatial resolution over a 50-km range with 1 to 2 orders of magnitude improvement in temporal resolution compared to prevailing Brillouin sensing approaches. For the first time

TABS is explored for state imaging of evacuated-tube maglev transportation system as an exemplary application

showcasing its feasibility and flexibility for potential open-world applications and large-scale intelligent perception.

关键词

Keywords

references

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