Plane-by-plane written, low-loss polymer optical fiber bragg grating arrays for multiparameter sensing in a smart walker

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dc.contributor.authorLeal-Junior, Arnaldo G.
dc.contributor.authorFrizera Neto, Anselmo
dc.contributor.authorTheodosiou, Antreas
dc.contributor.authorDiaz, Camilo
dc.contributor.authorJiménez Hernández, Mario Fernando
dc.contributor.authorMin, Rui
dc.contributor.authorPontes, Maria
dc.contributor.authorKalli, Kyriacos
dc.contributor.authorMarques, Carlos
dc.contributor.orcidJiménez Hernández, Mario Fernando [0000-0003-0965-277X]
dc.date.accessioned2020-05-14T19:28:51Z
dc.date.available2020-05-14T19:28:51Z
dc.date.issued2019
dc.description.abstractenglishIn this paper, we report the development of fiber Bragg gratings (FBGs) arrays in polymer optical fibers (POFs), specifically cyclic transparent optical polymer (CYTOP) fibers, using a femtosecond (fs) laser. The CYTOP is almost transparent to near-ultraviolet and visible light, thus femtosecond lasers appear to be a very promising technology for the development of gratings in such fibers. Bearing this in mind, we have applied the direct write, plane-by-plane inscription method to obtain `single-peak' FBGs in long arrays. Following this, we examine the performance of a 5-FBG array applied in a smart walker (SW) and characterized for four different functionalities of the proposed healthcare device. The polymer sensors were used to analyze 1) structural health monitoring (SHM) of the SW's mechanical structure; 2) detection of users' movement intention; 3) gait cadence estimation; and 4) detection of floor-induced vibrations for localization and mapping applications. The good results obtained in comparison to commercially available devices show the suitability of the proposed FBG-array on the instrumentation of healthcare devices, where multiple parameters can be measured using the same fiber, which leads to a compact and energy efficient system.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1109/JSEN.2019.2921419
dc.identifier.issn1558-1748
dc.identifier.urihttps://hdl.handle.net/20.500.12495/2786
dc.language.isoeng
dc.publisherIEEEspa
dc.publisher.journalIEEE Sensors Journalspa
dc.relation.ispartofseriesIEEE Sensors Journal, 1558-1748, Vol 19, Num 20, 2019, pag 9221 - 9228spa
dc.relation.urihttps://ieeexplore.ieee.org/abstract/document/8732485/authors
dc.rights.creativecommons2019
dc.rights.localAcceso cerradospa
dc.subject.decsVisión ocularspa
dc.subject.decsRayos láserspa
dc.subject.decsTerapia por luz de baja intensidadspa
dc.subject.keywordsOptical fiber sensorsspa
dc.subject.keywordsOptical fibersspa
dc.subject.keywordsFiber gratingsspa
dc.subject.keywordsFiber lasersspa
dc.titlePlane-by-plane written, low-loss polymer optical fiber bragg grating arrays for multiparameter sensing in a smart walkerspa
dc.title.translatedPlane-by-plane written, low-loss polymer optical fiber bragg grating arrays for multiparameter sensing in a smart walkerspa
dc.typearticlespa
dc.type.hasversioninfo:eu-repo/semantics/publishedVersion
dc.type.localartículospa

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