Systematic-error suppression in low-coherence Brillouin optical correlation-domain reflectometry

Brillouin optical correlation-domain analysis (BOCDA) utilizing low-coherence light sources offers high-resolution distributed strain and temperature sensing. However, conventional BOCDA requires dual-end injection of pump and probe light into the sensing fiber. To overcome this limitation, low-cohe...

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Autores principales: Otsubo, Kenta, Zhu, Guangtao, Kiyozumi, Takaki, Noda, Kohei, Nakamura, Kentaro, Lee, Heeyoung, Mizuno, Yosuke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10579351/
https://www.ncbi.nlm.nih.gov/pubmed/37845263
http://dx.doi.org/10.1038/s41598-023-44801-4
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author Otsubo, Kenta
Zhu, Guangtao
Kiyozumi, Takaki
Noda, Kohei
Nakamura, Kentaro
Lee, Heeyoung
Mizuno, Yosuke
author_facet Otsubo, Kenta
Zhu, Guangtao
Kiyozumi, Takaki
Noda, Kohei
Nakamura, Kentaro
Lee, Heeyoung
Mizuno, Yosuke
author_sort Otsubo, Kenta
collection PubMed
description Brillouin optical correlation-domain analysis (BOCDA) utilizing low-coherence light sources offers high-resolution distributed strain and temperature sensing. However, conventional BOCDA requires dual-end injection of pump and probe light into the sensing fiber. To overcome this limitation, low-coherence Brillouin optical correlation-domain reflectometry (BOCDR) based on spontaneous Brillouin scattering has emerged, enabling single-end light injection. While a pilot demonstration has shown a spatial resolution of 19 cm, a comparison of its measurement accuracy with standard BOCDR systems is yet to be explored. This study presents a distributed measurement with ~ 3 cm spatial resolution and demonstrates that low-coherence BOCDR eliminates systematic errors caused by direct sinusoidal modulation, offering enhanced measurement precision.
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spelling pubmed-105793512023-10-18 Systematic-error suppression in low-coherence Brillouin optical correlation-domain reflectometry Otsubo, Kenta Zhu, Guangtao Kiyozumi, Takaki Noda, Kohei Nakamura, Kentaro Lee, Heeyoung Mizuno, Yosuke Sci Rep Article Brillouin optical correlation-domain analysis (BOCDA) utilizing low-coherence light sources offers high-resolution distributed strain and temperature sensing. However, conventional BOCDA requires dual-end injection of pump and probe light into the sensing fiber. To overcome this limitation, low-coherence Brillouin optical correlation-domain reflectometry (BOCDR) based on spontaneous Brillouin scattering has emerged, enabling single-end light injection. While a pilot demonstration has shown a spatial resolution of 19 cm, a comparison of its measurement accuracy with standard BOCDR systems is yet to be explored. This study presents a distributed measurement with ~ 3 cm spatial resolution and demonstrates that low-coherence BOCDR eliminates systematic errors caused by direct sinusoidal modulation, offering enhanced measurement precision. Nature Publishing Group UK 2023-10-16 /pmc/articles/PMC10579351/ /pubmed/37845263 http://dx.doi.org/10.1038/s41598-023-44801-4 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Otsubo, Kenta
Zhu, Guangtao
Kiyozumi, Takaki
Noda, Kohei
Nakamura, Kentaro
Lee, Heeyoung
Mizuno, Yosuke
Systematic-error suppression in low-coherence Brillouin optical correlation-domain reflectometry
title Systematic-error suppression in low-coherence Brillouin optical correlation-domain reflectometry
title_full Systematic-error suppression in low-coherence Brillouin optical correlation-domain reflectometry
title_fullStr Systematic-error suppression in low-coherence Brillouin optical correlation-domain reflectometry
title_full_unstemmed Systematic-error suppression in low-coherence Brillouin optical correlation-domain reflectometry
title_short Systematic-error suppression in low-coherence Brillouin optical correlation-domain reflectometry
title_sort systematic-error suppression in low-coherence brillouin optical correlation-domain reflectometry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10579351/
https://www.ncbi.nlm.nih.gov/pubmed/37845263
http://dx.doi.org/10.1038/s41598-023-44801-4
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