Chemical sensors based on long period fiber gratings: A review

Fiber optic devices are being increasingly employed in the fields of chemical and environmental sensing due to their important features, such as high accuracy, small size, chemical inertness, remote operation and multiplexing capabilities. In this work, a thorough review about the design, fabricatio...

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Autor principal:	Flavio Esposito
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Chemical sensors Fiber optic sensors Gas sensors Long period gratings Optical sensors Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/169729a6c6dd4b5da6d7fa0d2a2c43ce
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spelling	oai:doaj.org-article:169729a6c6dd4b5da6d7fa0d2a2c43ce2021-11-26T04:42:24ZChemical sensors based on long period fiber gratings: A review2666-950110.1016/j.rio.2021.100196https://doaj.org/article/169729a6c6dd4b5da6d7fa0d2a2c43ce2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666950121001413https://doaj.org/toc/2666-9501Fiber optic devices are being increasingly employed in the fields of chemical and environmental sensing due to their important features, such as high accuracy, small size, chemical inertness, remote operation and multiplexing capabilities. In this work, a thorough review about the design, fabrication and characterization of fiber optic chemical sensors based on long period grating (LPG) technology is reported. The emphasis is placed on transducer designs and features as well as the techniques to enhance the sensitivity. Subsequently, coating materials to be deposited around the grating region, providing a selective response to the target analytes are described in detail. Finally, the different applications are reviewed, mainly related to the monitoring of environmental parameters, volatile organic compounds, hazardous gases, heavy metal ions, corrosion, marine salinity and food quality. The aim of this work is to deliver a comprehensive analysis regarding the state-of-the-art solutions about LPG-based chemical sensors and to summarize the current shortcomings and upcoming research paths.Flavio EspositoElsevierarticleChemical sensorsFiber optic sensorsGas sensorsLong period gratingsOptical sensorsOptics. LightQC350-467ENResults in Optics, Vol 5, Iss , Pp 100196- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical sensors Fiber optic sensors Gas sensors Long period gratings Optical sensors Optics. Light QC350-467
spellingShingle	Chemical sensors Fiber optic sensors Gas sensors Long period gratings Optical sensors Optics. Light QC350-467 Flavio Esposito Chemical sensors based on long period fiber gratings: A review
description	Fiber optic devices are being increasingly employed in the fields of chemical and environmental sensing due to their important features, such as high accuracy, small size, chemical inertness, remote operation and multiplexing capabilities. In this work, a thorough review about the design, fabrication and characterization of fiber optic chemical sensors based on long period grating (LPG) technology is reported. The emphasis is placed on transducer designs and features as well as the techniques to enhance the sensitivity. Subsequently, coating materials to be deposited around the grating region, providing a selective response to the target analytes are described in detail. Finally, the different applications are reviewed, mainly related to the monitoring of environmental parameters, volatile organic compounds, hazardous gases, heavy metal ions, corrosion, marine salinity and food quality. The aim of this work is to deliver a comprehensive analysis regarding the state-of-the-art solutions about LPG-based chemical sensors and to summarize the current shortcomings and upcoming research paths.
format	article
author	Flavio Esposito
author_facet	Flavio Esposito
author_sort	Flavio Esposito
title	Chemical sensors based on long period fiber gratings: A review
title_short	Chemical sensors based on long period fiber gratings: A review
title_full	Chemical sensors based on long period fiber gratings: A review
title_fullStr	Chemical sensors based on long period fiber gratings: A review
title_full_unstemmed	Chemical sensors based on long period fiber gratings: A review
title_sort	chemical sensors based on long period fiber gratings: a review
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/169729a6c6dd4b5da6d7fa0d2a2c43ce
work_keys_str_mv	AT flavioesposito chemicalsensorsbasedonlongperiodfibergratingsareview
_version_	1718409763157442560

Chemical sensors based on long period fiber gratings: A review

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