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Distributed Optical Fiber Sensors Based on Optical Frequency Domain Reflectometry: A review
Zhenyang Ding1,2,3, Chenhuan Wang4,5,6, Kun Liu7,8,9
1School of Precision Instrument & Optoelectronics Engineering, Tianjin University, Tianjin 300072, China. zyding@tju.edu.cn.
Sensors (Basel, Switzerland)
|April 4, 2018
Summary
Distributed optical fiber sensors (DOFS) using optical frequency domain reflectometry (OFDR) provide continuous monitoring of physical and chemical parameters. This review covers technologies to enhance DOFS performance for diverse applications.
Area of Science:
- Photonics and Sensing Technologies
- Optical Engineering
- Materials Science
Background:
- Distributed optical fiber sensors (DOFS) enable continuous spatial monitoring of physical and chemical parameters.
- Optical frequency domain reflectometry (OFDR) is a key DOFS technique known for high spatial resolution and dynamic range.
Purpose of the Study:
- To review key technologies for enhancing sensing range, spatial resolution, and overall performance of DOFS based on OFDR.
- To introduce sensing mechanisms and diverse applications of OFDR-based DOFS.
Main Methods:
- Survey of technological advancements in OFDR systems.
- Analysis of sensing principles for various parameters.
- Compilation of application examples.
Main Results:
- Identification of critical technologies for improving OFDR-based DOFS.
- Demonstration of OFDR's versatility in sensing strain, temperature, vibration, and more.
- Highlighting advancements in achieving higher spatial resolution and extended sensing ranges.
Conclusions:
- OFDR-based DOFS technologies are crucial for advanced parameter monitoring with high spatial resolution.
- Continuous improvements in OFDR enable a wide array of sensing applications, from structural health to environmental monitoring.
- This review provides a comprehensive overview of OFDR-based DOFS, guiding future research and development.
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