Journal
IEEE ACCESS
Volume 9, Issue -, Pages 41647-41668Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2021.3061250
Keywords
Optical fibers; Optical fiber sensors; Software algorithms; Signal processing algorithms; Sensors; Spatial resolution; Tuning; Distributed optical fiber sensors; frequency modulated continuous wave (FMCW); optical fiber sensors; optical frequency domain reflectometry (OFDR); phase noise compensation; Rayleigh backscattering
Categories
Funding
- National Natural Science Foundation of China [61975142, 62005190]
- Coal-Bed Methane Joint Research Fund of Shanxi Province, China [2015012005, 2016012011]
- Natural Science Foundation of Shanxi Province, China [201901D211072]
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OFDR is a type of DOFS that has high spatial resolution and large dynamic range, making it useful in a wide range of sensing scenarios such as temperature, strain, and vibration.
Optical frequency domain reflectometry (OFDR) is a kind of distributed optical fiber sensors (DOFS) which has attracted an increasing amount of research attention. The OFDR sensor has a high spatial resolution and large dynamic range, which makes it useful in a large amount of sensing scenarios. In this paper, we will provide a review of the recent advances in OFDR. We introduce the sensing principles and progress for performance improvement of the system. We also cover the applications of OFDR-based sensing system, including sensing of temperature, strain, vibration, pressure, magnetic field, refractive index, radiation, 3D-shape, gas, gas flow rate, and so on.
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