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Highly Integrated All-Fiber FP/FBG Sensor for Accurate Measurement of Strain under High Temperature

Accurate measurement of strain is one of the most important issues for high temperature environments. We present a highly integrated all-fiber sensor to achieve precise measurements of strain/high-pressure, which consists of a fiber Bragg grating (FBG) inscribed by an 800 nm femtosecond laser cascad...

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Autores principales: Yang, Tingting, He, Xiu, Ran, Zengling, Xie, Zhendong, Rao, Yunjiang, Qiao, Xueguang, He, Zhengxi, He, Peng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6213014/
https://www.ncbi.nlm.nih.gov/pubmed/30275367
http://dx.doi.org/10.3390/ma11101867
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author Yang, Tingting
He, Xiu
Ran, Zengling
Xie, Zhendong
Rao, Yunjiang
Qiao, Xueguang
He, Zhengxi
He, Peng
author_facet Yang, Tingting
He, Xiu
Ran, Zengling
Xie, Zhendong
Rao, Yunjiang
Qiao, Xueguang
He, Zhengxi
He, Peng
author_sort Yang, Tingting
collection PubMed
description Accurate measurement of strain is one of the most important issues for high temperature environments. We present a highly integrated all-fiber sensor to achieve precise measurements of strain/high-pressure, which consists of a fiber Bragg grating (FBG) inscribed by an 800 nm femtosecond laser cascaded with a micro extrinsic Fabry–Perot (FP) cavity fabricated by the 157 nm laser micromachining technique. FBG is sensitive to temperature, but insensitive to strain/pressure, whereas the FP is sensitive to strain/pressure, but has a small dependence on temperature. Therefore, such a cascaded sensor could be used for dual-parameter measurement and can work well at high temperatures. Experimental results indicate that this device exhibits a good strain characteristic at high temperatures and excellent high-pressure performance at room temperature. Due to its highly sensitive wavelength response, the proposed sensor will have remarkable potential applications in dual parameter sensing in harsh environments.
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spelling pubmed-62130142018-11-14 Highly Integrated All-Fiber FP/FBG Sensor for Accurate Measurement of Strain under High Temperature Yang, Tingting He, Xiu Ran, Zengling Xie, Zhendong Rao, Yunjiang Qiao, Xueguang He, Zhengxi He, Peng Materials (Basel) Article Accurate measurement of strain is one of the most important issues for high temperature environments. We present a highly integrated all-fiber sensor to achieve precise measurements of strain/high-pressure, which consists of a fiber Bragg grating (FBG) inscribed by an 800 nm femtosecond laser cascaded with a micro extrinsic Fabry–Perot (FP) cavity fabricated by the 157 nm laser micromachining technique. FBG is sensitive to temperature, but insensitive to strain/pressure, whereas the FP is sensitive to strain/pressure, but has a small dependence on temperature. Therefore, such a cascaded sensor could be used for dual-parameter measurement and can work well at high temperatures. Experimental results indicate that this device exhibits a good strain characteristic at high temperatures and excellent high-pressure performance at room temperature. Due to its highly sensitive wavelength response, the proposed sensor will have remarkable potential applications in dual parameter sensing in harsh environments. MDPI 2018-10-01 /pmc/articles/PMC6213014/ /pubmed/30275367 http://dx.doi.org/10.3390/ma11101867 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Tingting
He, Xiu
Ran, Zengling
Xie, Zhendong
Rao, Yunjiang
Qiao, Xueguang
He, Zhengxi
He, Peng
Highly Integrated All-Fiber FP/FBG Sensor for Accurate Measurement of Strain under High Temperature
title Highly Integrated All-Fiber FP/FBG Sensor for Accurate Measurement of Strain under High Temperature
title_full Highly Integrated All-Fiber FP/FBG Sensor for Accurate Measurement of Strain under High Temperature
title_fullStr Highly Integrated All-Fiber FP/FBG Sensor for Accurate Measurement of Strain under High Temperature
title_full_unstemmed Highly Integrated All-Fiber FP/FBG Sensor for Accurate Measurement of Strain under High Temperature
title_short Highly Integrated All-Fiber FP/FBG Sensor for Accurate Measurement of Strain under High Temperature
title_sort highly integrated all-fiber fp/fbg sensor for accurate measurement of strain under high temperature
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6213014/
https://www.ncbi.nlm.nih.gov/pubmed/30275367
http://dx.doi.org/10.3390/ma11101867
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