Review of a Specialty Fiber for Distributed Acoustic Sensing Technology
Abstract
:1. Introduction
2. Fundamental Principle
2.1. Principle of DAS Technology
2.2. Limitations of Single-Mode Fiber (SMF) DAS
3. Reviews of Specialty-Fiber-Based DAS Technology
3.1. Continuous Scattering-Enhanced Fiber-Based DAS
3.2. Discrete Scattering-Enhanced Fiber Based DAS
3.3. Preparation and Implementation of DSE Fiber
3.4. Methods to Improve the Performance of Specialty Fiber DAS
3.4.1. Low-Frequency Phase Drift Compensation Technology
3.4.2. Polarization Fading Suppression Technology
3.4.3. Pulse Width Compression Technology
3.4.4. Sampling Frequency Expansion Technology
4. Significant Application Progress
4.1. Geological and Resource Exploration
4.2. Structural Health Monitoring
4.2.1. Pipeline Monitoring
4.2.2. Track Defect Monitoring
4.2.3. Tunnel Safety Monitoring
4.2.4. Geological Structural Monitoring
4.3. Hydroacoustic Exploration
5. Conclusions and Prospects
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Fiber Length | Spacing of SEP | Pulse Width | Spacing of ERSP d | Repeat Times |
---|---|---|---|---|
13 m | 4 m | 20 ns | 1 um | 100 |
Fabrication Method | SNR Enhancements | Sensing Distance | |
---|---|---|---|
CSE fiber | Continuously inscribe Bragg gratings [31,32,33,34] | 15 dB [31] | 1 km [31] |
Highly doped fiber [35,36] | 14 dB [36] | 1.9 km [36] | |
DSE fiber | UV exposure [41,42,43,47,51,52,53] | 5.5–21.1 dB [41,42,43,47,51] | 50 km [51] |
Femtosecond laser inscription [40,44,45,54] | 13–15.8 dB [40,54] | 9.8 km [54] |
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Sun, Y.; Li, H.; Fan, C.; Yan, B.; Chen, J.; Yan, Z.; Sun, Q. Review of a Specialty Fiber for Distributed Acoustic Sensing Technology. Photonics 2022, 9, 277. https://doi.org/10.3390/photonics9050277
Sun Y, Li H, Fan C, Yan B, Chen J, Yan Z, Sun Q. Review of a Specialty Fiber for Distributed Acoustic Sensing Technology. Photonics. 2022; 9(5):277. https://doi.org/10.3390/photonics9050277
Chicago/Turabian StyleSun, Yixiang, Hao Li, Cunzheng Fan, Baoqiang Yan, Junfeng Chen, Zhijun Yan, and Qizhen Sun. 2022. "Review of a Specialty Fiber for Distributed Acoustic Sensing Technology" Photonics 9, no. 5: 277. https://doi.org/10.3390/photonics9050277