Distributed group birefringence measurement in a polarization-maintaining fiber using optical frequency-domain reflectometry

Zhou, Da-Peng; Qin, Zhenquan; Li, Wenhai; Chen, Liang; Bao, Xiaoyi

doi:10.1016/j.optcom.2015.01.071

Cited by 7 publications

(1 citation statement)

References 15 publications

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“…Because of the smaller wavelength range, the spatial resolution was compromised of a few cm with frequency range of less than 50 Hz. Using PMF, one can use relative change of fast and slow axis to remove the need of reference trace for real-time dynamic strain measurement using OFDR [64], which allows 200 nε being detected. The maximum detectable dynamic strain is limited by the positiondependent Rayleigh scattering pattern correlation in OFDR traces, i.e., backscattered traces depend on the spatial distribution of the inhomogeneity in the sensing fiber [65].…”

Section: Optical Frequency Domain Reflectometry (Ofdr)mentioning

confidence: 99%

Recent Advancements in Rayleigh Scattering-Based Distributed Fiber Sensors

Bao

Wang

2021

Adv Devices Instrum

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Recently, Rayleigh scattering-based distributed fiber sensors have been widely used for measurement of static and dynamic phenomena such as temperature change, dynamic strain, and sound waves. In this review paper, several sensing systems including traditional Rayleigh optical time domain reflectometry (OTDR), Φ-OTDR, chirped pulse Φ-OTDR, and optical frequency domain reflectometry (OFDR) are introduced for their working principles and recent progress with different instrumentations for various applications. Beyond the sensing technology and instrumentation, we also discuss new types of fiber sensors, such as ultraweak fiber Bragg gratings and random fiber gratings for distributed sensing and their interrogators. Ultimately, the limitations of Rayleigh-based distributed sensing systems are discussed.

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Section: Optical Frequency Domain Reflectometry (Ofdr)mentioning

confidence: 99%