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A Cost-Effective Distributed Acoustic Sensor Using a Commercial Off-the-Shelf DFB Laser and Direct Detection Phase-OTDR

Yonas Muanenda, Claudio J. Oton, Stefano Faralli, Fabrizio Di Pasquale
2016 IEEE Photonics Journal  
We propose and experimentally demonstrate the use of cyclic pulse coding for enhanced performance in distributed acoustic sensing based on a phase-sensitive optical time-domain reflectometry (-OTDR) using  ...  By externally modulating such lasers with cyclic pulse coding, we demonstrate a distributed acoustic sensor capable of measuring vibrations of up to 500 Hz over 5 km of standard single-mode fiber with  ...  Cyclic Pulse Coding in Phase-OTDR Phase OTDR is based on the observation of the coherent Rayleigh backscattering signal from light pulses sent into the fiber to detect the phase changes induced by local  ... 
doi:10.1109/jphot.2015.2508427 fatcat:qu5gzvmqlvdinolnysbvhtucje

A comprehensive study of optical fiber acoustic sensing

Yu Wang, Hongyu Yuan, Xin Liu, Qing Bai, Hongjuan Zhang, Yan Gao, Baoquan Jin
2019 IEEE Access  
INDEX TERMS Acoustic detection, distributed acoustic sensing, optical fiber sensing, ϕ-OTDR, structural health monitoring.  ...  Moreover, the current primary research works of the phase-sensitive optical time-domain reflectometer (ϕ-OTDR) are the signalto-noise ratio improvement and the mixed optical structure design.  ...  High-sensitivity quasi-distributed optical fiber acoustic sensing system. -OTDR system.  ... 
doi:10.1109/access.2019.2924736 fatcat:6hyim5kw3zbgtavpkjo65sac7m

A Review of Hybrid Fiber-Optic Distributed Simultaneous Vibration and Temperature Sensing Technology and Its Geophysical Applications

Khalid Miah, David Potter
2017 Sensors  
Rayleigh scattering-based phase optical time domain reflectometry (OTDR) for vibration and Raman/Brillouin scattering-based OTDR for temperature and strain measurements have been developed over the past  ...  Fiber-optic distributed acoustic sensing (DAS) and distributed temperature sensing (DTS) systems have been developed for various applications with varied spatial resolution, and spectral and sensing range  ...  Acknowledgments: The authors thank Newmont Mining Corporation for funding related to distributed fiber-optic sensing research, and thus to this article.  ... 
doi:10.3390/s17112511 pmid:29104259 pmcid:PMC5712819 fatcat:xvw6opq6p5do3hu7kn5sbr7wi4

High Resolution Distributed Optical Fiber Sensing Using Time-Expanded Phase-Sensitive Reflectometry

María R. Fernández-Ruiz, Miguel Soriano-Amat, Hugo F. Martins, Vicente Durán, Sonia Martin-Lopez, Miguel Gonzalez-Herraez
2022 Frontiers in Sensors  
We have demonstrated a novel scheme for distributed optical fiber sensing based on the use of a dual frequency comb, which enables the development of a high-resolution (in the cm range) distributed sensor  ...  In particular, DOFS based on phase sensitive OTDROTDR) have demonstrated their ability to perform real time monitoring of structures with sampling frequencies reaching the acoustic range (i.e., up to  ...  Quadratic Phase Coding for SNR Improvement in Time-Expanded Phase-Sensitive OTDR. Opt.  ... 
doi:10.3389/fsens.2021.804556 fatcat:hhzdheyjmzdrpgfkcwx7d3lti4

Recent Advances in Phase-Sensitive Optical Time Domain Reflectometry (Ф-OTDR)

Yunjiang Rao, Zinan Wang, Huijuan Wu, Zengling Ran, Bing Han
2021 Photonic Sensors  
In particular, fiber-optic distributed acoustic sensing (DAS) based on the Ф-OTDR with phase demodulation has been extensively studied and widely used in intrusion detection, borehole seismic acquisition  ...  AbstractPhase-sensitive optical time domain reflectometry (Ф-OTDR) is an effective way to detect vibrations and acoustic waves with high sensitivity, by interrogating coherent Rayleigh backscattering light  ...  in real time, and that is the reason why the Ф-OTDR based on the phase demodulation algorithm, i.e., distributed acoustic sensing (DAS), has been widely concerned in recent years.  ... 
doi:10.1007/s13320-021-0619-4 fatcat:hjmc7wjuhbdgbnpa6vpbft2qpm

Recent Advancements in Rayleigh Scattering-Based Distributed Fiber Sensors

Xiaoyi Bao, Yuan Wang
2021 Advanced Devices & Instrumentation  
Ultimately, the limitations of Rayleigh-based distributed sensing systems are discussed.  ...  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  ...  sensors in temperature, strain, and vibration measurements, as well as phase OTDR application to measure laser linewidth and phase noises, chirped pulse-based phase-sensitive OTDR technology, and challenges  ... 
doi:10.34133/2021/8696571 fatcat:igbhv7jzo5epxd4c7nfenjxsea

Time-expanded phase-sensitive optical time-domain reflectometry

Miguel Soriano-Amat, Hugo F. Martins, Vicente Durán, Luis Costa, Sonia Martin-Lopez, Miguel Gonzalez-Herraez, María R. Fernández-Ruiz
2021 Light: Science & Applications  
Random phase-spectral coding is applied to the employed combs to maximize the signal-to-noise ratio of the sensing scheme.  ...  AbstractPhase-sensitive optical time-domain reflectometry (ΦOTDR) is a well-established technique that provides spatio-temporal measurements of an environmental variable in real time.  ...  In sensing schemes based on ΦOTDR, the attainable spatial resolution scales inversely with the employed pulse width, being typically 1 m per 10 ns of pulse duration.  ... 
doi:10.1038/s41377-021-00490-0 pmid:33686060 fatcat:2wk4dchp2nbfvju6h27t766eyq

Advances in phase-sensitive optical time-domain reflectometry

Shuaiqi Liu, Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518000, China, Feihong Yu, Rui Hong, Weijie Xu, Liyang Shao, Feng Wang, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210023, China
2022 Opto-Electronic Advances  
Relying on the ultra-sensitivity of light phase to the tiny deformation of optical fiber, Φ-OTDR has been treated as a powerful technique with a wide range of applications.  ...  It is fundamental to extract the phase of scattering light wave accurately and the methods include coherent detection, I/Q demodulation, 3 by 3 coupler, dual probe pulses, and so on.  ...  The other one is to demodulate the phase change of the RBS light induced by the disturbance, namely the distributed acoustic sensing (DAS) technique.  ... 
doi:10.29026/oea.2022.200078 fatcat:d4ditgnjhnbdrh27mc5gagbqzy

Coherent OTDR using Flexible ALL-Digital Orthogonal Phase Code Pulse for Distributed Sensing

Wenjie Chen, Junfeng Jiang, Kun Liu, Shuang Wang, Zhe Ma, Zhenyang Ding, Tianhua Xu, Tiegen Liu
2020 IEEE Access  
A coherent optical time-domain reflectometer (COTDR) using flexible all-digital orthogonal phase code pulse is proposed for distributed acoustic sensing.  ...  All-digital orthogonal phase code pulse with frequency shift and time shift is used as probe.  ...  CONCLUSIONA coherent OTDR using all-digital orthogonal phase code pulse is proposed and demonstrated for distributed acoustic sensing.  ... 
doi:10.1109/access.2020.2992077 fatcat:mgfekhkkdbhmdit32twnn2dsxi

FBG Arrays for Quasi-Distributed Sensing: A Review

Chengli Li, Jianguan Tang, Cheng Cheng, Longbao Cai, Minghong Yang
2021 Photonic Sensors  
Simultaneous distributed dynamic and static sensing system based on FBG array is also outlined. Finally, possible future directions are discussed and concluded.  ...  Distributed static sensing can be performed by demodulating wavelength shift of each FBG, while phase demodulation techniques with low noise are employed for dynamic vibration sensing.  ...  [57] reported a high-SNR distributed acoustic sensing based on an identical UWFBG array without phase unwrapping.  ... 
doi:10.1007/s13320-021-0615-8 fatcat:zl3rpkv5snaulf6imfcruvwssm

Phase-Sensitive Optical Time Domain Reflectometry with Rayleigh Enhanced Optical Fiber

Nageswara Lalam, Paul S. Westbrook, Jie Li, Ping Lu, Michael P. Buric
2021 IEEE Access  
In this paper, a phase-sensitive optical time domain reflectometry ( -OTDR) based on Rayleigh enhanced optical fiber is proposed to improve the system signal-to-noise ratio (SNR).  ...  The proposed method overcomes the inherent limitations of the conventional -OTDR system and significantly enhances the vibration sensing performance.  ...  Among various distributed optical fiber sensing systems, phase-sensitive optical time-domain reflectometry ( -OTDR) (also called distributed acoustic sensor (DAS)) based on Rayleigh backscattered signals  ... 
doi:10.1109/access.2021.3105334 fatcat:jroc4pbt5jhznlrmpafnctmlfi

Recent Advances in Distributed Acoustic Sensing Based on Phase-Sensitive Optical Time Domain Reflectometry

Yonas Muanenda
2018 Journal of Sensors  
In this contribution, an overview of the recent advances of research in DAS based on phase-sensitive optical time domain reflectometry (ϕ-OTDR) is provided.  ...  Distributed acoustic sensing (DAS) using coherent Rayleigh backscattering in an optical fiber has become a ubiquitous technique for monitoring multiple dynamic events in real time.  ...  In this contribution, we provide an overview of some of the recent advances of research in the area of DAS based on phase-sensitive OTDR (ϕ-OTDR).  ... 
doi:10.1155/2018/3897873 fatcat:hml7aacxkndjvlaipz6mronlmu

Phase-sensitive correlation optical time-domain reflectometer using quantum phase noise of laser light

A. Arias, M.G. Shlyagin, S.V. Miridonov, Rodolfo Martinez Manuel
2015 Optics Express  
It is based on the quantum phase fluctuations of a coherent light emitted by a telecom DFB diode laser.  ...  We propose and experimentally demonstrate a simple approach to realize a phase-sensitive correlation optical time-domain reflectometer (OTDR) suitable for detection and localization of dynamic perturbations  ...  Recently, a dynamic Optical Frequency Domain Reflectometry system was reported for distributed acoustic sensing.  ... 
doi:10.1364/oe.23.030347 pmid:26698514 fatcat:i2r5rb2vongaxl53m3lbijhvlm

Front Matter: Volume 10323

2017 25th International Conference on Optical Fiber Sensors  
.  The last two digits indicate publication order within the volume using a Base 36 numbering system employing both numerals and letters. These two-number sets start with 00, 01, 02, 03, 04,  ...  optical time-domain analyzer for extended sensing range using probe dithering and cyclic coding 10323 0R 20 dB SNR enhancement in phase-sensitive OTDR using pulse stretching and recompression iv Proc  ...  the strain characteristic of fiber optic flexural disk accelerometer based on multilayer fiber coils 10323 8T Impact of the laser phase noise on chirped-pulse phase-sensitive OTDR 10323 8U Clarification  ... 
doi:10.1117/12.2277979 fatcat:louo4wlltbeg3a2hcmgehltg2q

Recent Progress in the Performance Enhancement of Phase-Sensitive OTDR Vibration Sensing Systems

Romain Zinsou, Xin Liu, Yu Wang, Jianguo Zhang, Yuncai Wang, Baoquan Jin
2019 Sensors  
Recently, phase-sensitive Optical Time-Domain Reflectometry (Φ-OTDR)-based vibration sensor systems have gained the interest of many researchers and some efforts have been undertaken to push the performance  ...  This paper presents an overview of the recent progress in Φ-OTDR-based vibration sensing systems in the different areas mentioned above.  ...  Figure 13 . 13 Setup of the Φ-OTDR based sensor using the 90° optical hybrid for phase demodulation. AFS: acoustic frequency shifter.  ... 
doi:10.3390/s19071709 fatcat:qrc4bwclvrc7fcwz75idon3tpe
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