High-performance Φ-OTDR with the temporally sequenced multi-frequency multi-wavelength chirped source
A novel phase-sensitive optical time-domain reflectometry (Φ-OTDR) based on the temporally sequenced multi-frequency multi-wavelength chirped source is proposed, with 50kHz detection bandwidth and -52.5dB ra<sup>d</sup>2/Hz mean noise floor. The scheme can simultaneously meet the requirements of high-bandwidth and high signal-to-noise ratio (SNR) in the fields of large-scale structural health inspection and oil and gas pipelines.
Authors
- Zhaoyong Wang (ORCID: https://orcid.org/0000-0003-0235-5596)
- Luwei Shuai (ORCID: https://orcid.org/0009-0008-8176-725X)
- Haoyang Pi
- Yici Chen
- Qing Ye (ORCID: https://orcid.org/0000-0003-2967-2276)
- Yifan Liu (ORCID: https://orcid.org/0000-0002-9044-0936)
- Xuan Li (ORCID: https://orcid.org/0000-0002-0418-5482)
- Kan Gao (ORCID: https://orcid.org/0000-0001-8016-5013)
- Feifei Song (ORCID: https://orcid.org/0000-0002-8866-1270)
- Jinyi Wu (ORCID: https://orcid.org/0009-0005-4892-723X)
- Ronghui Qu
- Haiwen Cai (ORCID: https://orcid.org/0000-0002-7033-6349)
- Boqi Chen
Institutions
- Chinese Academy of Sciences (CN)
- Shanghai Institute of Optics and Fine Mechanics (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1117/12.3062161
- Primary Topic
- Advanced Fiber Optic Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00