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Recent Advances in Ultra-Weak Fiber Bragg Gratings Array for High-Performance Distributed Acoustic Sensing (Invited)

Yihang Wang1,2, Baijie Xu1,2, Guanfeng Chen1,2

  • 1State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Sensors (Basel, Switzerland)
|January 28, 2026
PubMed
Summary

Ultra-weak fiber Bragg grating (UWFBG) arrays significantly boost distributed acoustic sensing (DAS) performance by enhancing backscattering intensity. This review covers UWFBG inscription methods and their applications in improving DAS systems.

Keywords:
distributed acoustic sensingdistributed fiber sensorultra-weak fiber Bragg grating

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