Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation

Demodulation is a bottleneck for applications involving fiber Bragg gratings (FBGs). An overlap spectrum FBG sensor based on a light power demodulation method is presented in this paper. The demodulation method uses two chirp FBGs (cFBGs) of which the reflection spectra partially overlap each other....

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Autores principales: Zhang, Hao, Jiang, Junzhen, Liu, Shuang, Chen, Huaixi, Zheng, Xiaoqian, Qiu, Yishen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5981642/
https://www.ncbi.nlm.nih.gov/pubmed/29772793
http://dx.doi.org/10.3390/s18051597
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author Zhang, Hao
Jiang, Junzhen
Liu, Shuang
Chen, Huaixi
Zheng, Xiaoqian
Qiu, Yishen
author_facet Zhang, Hao
Jiang, Junzhen
Liu, Shuang
Chen, Huaixi
Zheng, Xiaoqian
Qiu, Yishen
author_sort Zhang, Hao
collection PubMed
description Demodulation is a bottleneck for applications involving fiber Bragg gratings (FBGs). An overlap spectrum FBG sensor based on a light power demodulation method is presented in this paper. The demodulation method uses two chirp FBGs (cFBGs) of which the reflection spectra partially overlap each other. The light power variation of the overlap spectrum can be linked to changes in the measurand, and the sensor function can be realized via this relationship. A temperature experiment showed that the relationship between the overlap power spectrum of the FBG sensor and temperature had good linearity and agreed with the theoretical analysis.
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spelling pubmed-59816422018-06-05 Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation Zhang, Hao Jiang, Junzhen Liu, Shuang Chen, Huaixi Zheng, Xiaoqian Qiu, Yishen Sensors (Basel) Article Demodulation is a bottleneck for applications involving fiber Bragg gratings (FBGs). An overlap spectrum FBG sensor based on a light power demodulation method is presented in this paper. The demodulation method uses two chirp FBGs (cFBGs) of which the reflection spectra partially overlap each other. The light power variation of the overlap spectrum can be linked to changes in the measurand, and the sensor function can be realized via this relationship. A temperature experiment showed that the relationship between the overlap power spectrum of the FBG sensor and temperature had good linearity and agreed with the theoretical analysis. MDPI 2018-05-17 /pmc/articles/PMC5981642/ /pubmed/29772793 http://dx.doi.org/10.3390/s18051597 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
Zhang, Hao
Jiang, Junzhen
Liu, Shuang
Chen, Huaixi
Zheng, Xiaoqian
Qiu, Yishen
Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation
title Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation
title_full Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation
title_fullStr Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation
title_full_unstemmed Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation
title_short Overlap Spectrum Fiber Bragg Grating Sensor Based on Light Power Demodulation
title_sort overlap spectrum fiber bragg grating sensor based on light power demodulation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5981642/
https://www.ncbi.nlm.nih.gov/pubmed/29772793
http://dx.doi.org/10.3390/s18051597
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AT liushuang overlapspectrumfiberbragggratingsensorbasedonlightpowerdemodulation
AT chenhuaixi overlapspectrumfiberbragggratingsensorbasedonlightpowerdemodulation
AT zhengxiaoqian overlapspectrumfiberbragggratingsensorbasedonlightpowerdemodulation
AT qiuyishen overlapspectrumfiberbragggratingsensorbasedonlightpowerdemodulation

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