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Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions

We demonstrated an optical fiber sensor based on a cascaded fiber Fabry-Perot interferometer (FPI)-regenerated fiber Bragg grating (RFBG) for simultaneous measurement of temperature and strain under high temperature environments. The FPI is manufactured from a similar to 74 mu m long hollow core sil...

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Main Authors: Tian, Qin, Xin, Guoguo, Lim, Kok Sing, He, Yudong, Liu, Ji, Ahmad, Harith, Liu, Xiaochong, Yang, Hang Zhou
Format: Article
Published: Optical Society of America 2020
Subjects:
QC Physics
Online Access:http://eprints.um.edu.my/36337/
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spelling my.um.eprints.363372023-10-06T03:44:45Z http://eprints.um.edu.my/36337/ Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions Tian, Qin Xin, Guoguo Lim, Kok Sing He, Yudong Liu, Ji Ahmad, Harith Liu, Xiaochong Yang, Hang Zhou QC Physics We demonstrated an optical fiber sensor based on a cascaded fiber Fabry-Perot interferometer (FPI)-regenerated fiber Bragg grating (RFBG) for simultaneous measurement of temperature and strain under high temperature environments. The FPI is manufactured from a similar to 74 mu m long hollow core silica tube (HCST) sandwiched between two single mode fibers (SMFs). The RFBG is inscribed in one of the SMF arms which is embedded inside an alundum tube, making it insensitive to the applied strain on the entire fiber sensor, just in case the temperature and strain recovery process are described using the strain-free RFBG instead of a characteristic due-parameter matrix. This feature is intended for thermal compensation for the FPI structure that is sensitive to both temperature and strain. In the characterization tests, the proposed device has exhibited a temperature sensitivity similar to 18.01 pm/degrees C in the range of 100 degrees C - 1000 degrees C and excellent linear response to strain in the range of 300 degrees C - 1000 degrees C. The measured strain sensitivity is as high as similar to 2.17 pm/mu epsilon for a detection range from 0 mu epsilon to 450 mu epsilon at 800 degrees C, which is similar to 1.5 times that of a FPI-RFBG without the alundum tube. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement Optical Society of America 2020-10 Article PeerReviewed Tian, Qin and Xin, Guoguo and Lim, Kok Sing and He, Yudong and Liu, Ji and Ahmad, Harith and Liu, Xiaochong and Yang, Hang Zhou (2020) Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions. Optics Express, 28 (21). pp. 30478-30488. ISSN 1094-4087, DOI https://doi.org/10.1364/OE.403716 <https://doi.org/10.1364/OE.403716>. 10.1364/OE.403716
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QC Physics
spellingShingle QC Physics
Tian, Qin
Xin, Guoguo
Lim, Kok Sing
He, Yudong
Liu, Ji
Ahmad, Harith
Liu, Xiaochong
Yang, Hang Zhou
Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions
description We demonstrated an optical fiber sensor based on a cascaded fiber Fabry-Perot interferometer (FPI)-regenerated fiber Bragg grating (RFBG) for simultaneous measurement of temperature and strain under high temperature environments. The FPI is manufactured from a similar to 74 mu m long hollow core silica tube (HCST) sandwiched between two single mode fibers (SMFs). The RFBG is inscribed in one of the SMF arms which is embedded inside an alundum tube, making it insensitive to the applied strain on the entire fiber sensor, just in case the temperature and strain recovery process are described using the strain-free RFBG instead of a characteristic due-parameter matrix. This feature is intended for thermal compensation for the FPI structure that is sensitive to both temperature and strain. In the characterization tests, the proposed device has exhibited a temperature sensitivity similar to 18.01 pm/degrees C in the range of 100 degrees C - 1000 degrees C and excellent linear response to strain in the range of 300 degrees C - 1000 degrees C. The measured strain sensitivity is as high as similar to 2.17 pm/mu epsilon for a detection range from 0 mu epsilon to 450 mu epsilon at 800 degrees C, which is similar to 1.5 times that of a FPI-RFBG without the alundum tube. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
format Article
author Tian, Qin
Xin, Guoguo
Lim, Kok Sing
He, Yudong
Liu, Ji
Ahmad, Harith
Liu, Xiaochong
Yang, Hang Zhou
author_facet Tian, Qin
Xin, Guoguo
Lim, Kok Sing
He, Yudong
Liu, Ji
Ahmad, Harith
Liu, Xiaochong
Yang, Hang Zhou
author_sort Tian, Qin
title Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions
title_short Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions
title_full Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions
title_fullStr Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions
title_full_unstemmed Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions
title_sort cascaded fabry-perot interferometer-regenerated fiber bragg grating structure for temperature-strain measurement under extreme temperature conditions
publisher Optical Society of America
publishDate 2020
url http://eprints.um.edu.my/36337/
_version_ 1781704497117003776
score 13.211869

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