Distributed optical fiber sensing based on the combination of Brillouin and Rayleigh scattering

Lamessa Abebe Ayana; Qi Chu; Yulin Pei; Liqiang Qiu; Dexin Ba; Yongkang Dong

doi:10.1117/12.2599257

Distributed optical fiber sensing based on the combination of Brillouin and Rayleigh scattering

Lamessa Abebe Ayana
, Qi Chu
, Yulin Pei
, Liqiang Qiu
, Dexin Ba
, Yongkang Dong

Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

A high resolution distributed dynamic strain sensing has been proposed and experimentally demonstrated based on the combination of Brillouin and Rayleigh scattering. The proposed scheme employs the same set of frequency-scanning optical pulses modulated through the frequency-agile technique for fast measurements. The Brillouin optical time domain analyzer (BOTDA) technology is used to provide absolute measurement benchmarks, while the phase-sensitive optical time domain reflectometer (φ-OTDR) technology is used to capture relative strain changes in details. Two groups of 100 Hz vibrations with different amplitude (300 nε and 250 nε) have been measured under two different absolute strains (1173.9 με and 525.3 με), which allows for dynamic absolute strain measurement with a high resolution of 8.4 nε.

Original language	English
Title of host publication	First Optics Frontier Conference
Editors	Shining Zhu, Tiejun Cui, Xiangang Luo, Long Zhang
Publisher	SPIE
ISBN (Electronic)	9781510645448
DOIs	https://doi.org/10.1117/12.2599257
State	Published - 2021
Externally published	Yes
Event	1st Optics Frontier Conference 2021 - Hangzhou, China Duration: 24 Apr 2021 → 26 Apr 2021

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11850
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	1st Optics Frontier Conference 2021
Country/Territory	China
City	Hangzhou
Period	24/04/21 → 26/04/21

Bibliographical note

Publisher Copyright:
© 2021 SPIE.

Keywords

Brillouin scattering
Fast measurement
High resolution
Rayleigh scattering

Access to Document

10.1117/12.2599257

Cite this

Ayana, L. A., Chu, Q., Pei, Y., Qiu, L., Ba, D., & Dong, Y. (2021). Distributed optical fiber sensing based on the combination of Brillouin and Rayleigh scattering. In S. Zhu, T. Cui, X. Luo, & L. Zhang (Eds.), First Optics Frontier Conference Article 118500D (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11850). SPIE. https://doi.org/10.1117/12.2599257

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title = "Distributed optical fiber sensing based on the combination of Brillouin and Rayleigh scattering",

abstract = "A high resolution distributed dynamic strain sensing has been proposed and experimentally demonstrated based on the combination of Brillouin and Rayleigh scattering. The proposed scheme employs the same set of frequency-scanning optical pulses modulated through the frequency-agile technique for fast measurements. The Brillouin optical time domain analyzer (BOTDA) technology is used to provide absolute measurement benchmarks, while the phase-sensitive optical time domain reflectometer (φ-OTDR) technology is used to capture relative strain changes in details. Two groups of 100 Hz vibrations with different amplitude (300 nε and 250 nε) have been measured under two different absolute strains (1173.9 με and 525.3 με), which allows for dynamic absolute strain measurement with a high resolution of 8.4 nε.",

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year = "2021",

doi = "10.1117/12.2599257",

language = "אנגלית",

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Ayana, LA, Chu, Q, Pei, Y, Qiu, L, Ba, D & Dong, Y 2021, Distributed optical fiber sensing based on the combination of Brillouin and Rayleigh scattering. in S Zhu, T Cui, X Luo & L Zhang (eds), First Optics Frontier Conference., 118500D, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11850, SPIE, 1st Optics Frontier Conference 2021, Hangzhou, China, 24/04/21. https://doi.org/10.1117/12.2599257

Distributed optical fiber sensing based on the combination of Brillouin and Rayleigh scattering. / Ayana, Lamessa Abebe; Chu, Qi; Pei, Yulin et al.
First Optics Frontier Conference. ed. / Shining Zhu; Tiejun Cui; Xiangang Luo; Long Zhang. SPIE, 2021. 118500D (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11850).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Ayana, Lamessa Abebe

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AU - Pei, Yulin

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AU - Ba, Dexin

AU - Dong, Yongkang

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N2 - A high resolution distributed dynamic strain sensing has been proposed and experimentally demonstrated based on the combination of Brillouin and Rayleigh scattering. The proposed scheme employs the same set of frequency-scanning optical pulses modulated through the frequency-agile technique for fast measurements. The Brillouin optical time domain analyzer (BOTDA) technology is used to provide absolute measurement benchmarks, while the phase-sensitive optical time domain reflectometer (φ-OTDR) technology is used to capture relative strain changes in details. Two groups of 100 Hz vibrations with different amplitude (300 nε and 250 nε) have been measured under two different absolute strains (1173.9 με and 525.3 με), which allows for dynamic absolute strain measurement with a high resolution of 8.4 nε.

AB - A high resolution distributed dynamic strain sensing has been proposed and experimentally demonstrated based on the combination of Brillouin and Rayleigh scattering. The proposed scheme employs the same set of frequency-scanning optical pulses modulated through the frequency-agile technique for fast measurements. The Brillouin optical time domain analyzer (BOTDA) technology is used to provide absolute measurement benchmarks, while the phase-sensitive optical time domain reflectometer (φ-OTDR) technology is used to capture relative strain changes in details. Two groups of 100 Hz vibrations with different amplitude (300 nε and 250 nε) have been measured under two different absolute strains (1173.9 με and 525.3 με), which allows for dynamic absolute strain measurement with a high resolution of 8.4 nε.

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KW - Fast measurement

KW - High resolution

KW - Rayleigh scattering

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Distributed optical fiber sensing based on the combination of Brillouin and Rayleigh scattering

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Keywords

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