A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer

A compact fiber-optic inclinometer is proposed and experimentally demonstrated based on a Fabry-Perot interference (FFPI). The sensing head consists of a short segment of thin-core fiber (TCF) following with a piece of hollow-core fiber (HCF). High-order cladding modes have been excited because of c...

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Detalles Bibliográficos
Autores principales: Li, Jiacheng, Qiao, Xueguang, Rong, Qiangzhou, Sun, An
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4732125/
https://www.ncbi.nlm.nih.gov/pubmed/26771614
http://dx.doi.org/10.3390/s16010092
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author Li, Jiacheng
Qiao, Xueguang
Rong, Qiangzhou
Sun, An
author_facet Li, Jiacheng
Qiao, Xueguang
Rong, Qiangzhou
Sun, An
author_sort Li, Jiacheng
collection PubMed
description A compact fiber-optic inclinometer is proposed and experimentally demonstrated based on a Fabry-Perot interference (FFPI). The sensing head consists of a short segment of thin-core fiber (TCF) following with a piece of hollow-core fiber (HCF). High-order cladding modes have been excited because of core diameter mismatch. A clear interference spectrum has been obtained as the consequence of interference among the reflected core modes and cladding modes. Fringe contrast of the interference spectrum is highly sensitive to fiber bending with direction independence, and good linearity has been observed during the bending range from 1° to 3° with a sensitivity of 2.71 dB/deg.
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spelling pubmed-47321252016-02-12 A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer Li, Jiacheng Qiao, Xueguang Rong, Qiangzhou Sun, An Sensors (Basel) Article A compact fiber-optic inclinometer is proposed and experimentally demonstrated based on a Fabry-Perot interference (FFPI). The sensing head consists of a short segment of thin-core fiber (TCF) following with a piece of hollow-core fiber (HCF). High-order cladding modes have been excited because of core diameter mismatch. A clear interference spectrum has been obtained as the consequence of interference among the reflected core modes and cladding modes. Fringe contrast of the interference spectrum is highly sensitive to fiber bending with direction independence, and good linearity has been observed during the bending range from 1° to 3° with a sensitivity of 2.71 dB/deg. MDPI 2016-01-12 /pmc/articles/PMC4732125/ /pubmed/26771614 http://dx.doi.org/10.3390/s16010092 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Jiacheng
Qiao, Xueguang
Rong, Qiangzhou
Sun, An
A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer
title A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer
title_full A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer
title_fullStr A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer
title_full_unstemmed A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer
title_short A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer
title_sort compact fiber inclinometer using a thin-core fiber with incorporated an air-gap microcavity fiber interferometer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4732125/
https://www.ncbi.nlm.nih.gov/pubmed/26771614
http://dx.doi.org/10.3390/s16010092
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