Contactless vital signs monitoring based on few-mode and multi-core fibers

Few-mode and multi-core fibers are proposed and demonstrated for contactless vital signs monitoring in this paper. In-line optical fiber interferometers using few-mode and multi-core fibers are designed and offset splicing is utilized for mode excitation. Extinction ratio and insertion loss are anal...

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Autores principales:	Tan Fengze, Lyu Weimin, Chen Shuyang, Liu Zhengyong, Yu Changyuan
Formato:	article
Lenguaje:	EN
Publicado:	Institue of Optics and Electronics, Chinese Academy of Sciences 2020
Materias:	few-mode fiber multi-core fiber in-line interferometer vital signs monitoring Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/df0f28569c1c4ee096d0063809155def
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spelling	oai:doaj.org-article:df0f28569c1c4ee096d0063809155def2021-11-10T10:12:42ZContactless vital signs monitoring based on few-mode and multi-core fibers2096-457910.29026/oea.2020.190034https://doaj.org/article/df0f28569c1c4ee096d0063809155def2020-05-01T00:00:00Zhttp://www.oejournal.org/article/doi/10.29026/oea.2020.190034https://doaj.org/toc/2096-4579Few-mode and multi-core fibers are proposed and demonstrated for contactless vital signs monitoring in this paper. In-line optical fiber interferometers using few-mode and multi-core fibers are designed and offset splicing is utilized for mode excitation. Extinction ratio and insertion loss are analyzed experimentally under different offset distances. The fabricated in-line interferometers are packaged under the mattress to realize contactless vital signs signals collection. By using filtering techniques, both respiration and heartbeat signals can be recovered successfully, and respiration as well as heartbeat ratio are obtained. Mode excitation and interference are theoretically analyzed in few-mode fiber while curvature sensing experiments using multi-core fiber interferometer are performed to verify its excellent performance on vital signs monitoring. The successful demonstration on contactless vital signs monitoring makes few-mode and multi-core fibers promising candidates for healthcare applications.Tan FengzeLyu WeiminChen ShuyangLiu ZhengyongYu ChangyuanInstitue of Optics and Electronics, Chinese Academy of Sciencesarticlefew-mode fibermulti-core fiberin-line interferometervital signs monitoringOptics. LightQC350-467ENOpto-Electronic Advances, Vol 3, Iss 5, Pp 190034-1-190034-12 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	few-mode fiber multi-core fiber in-line interferometer vital signs monitoring Optics. Light QC350-467
spellingShingle	few-mode fiber multi-core fiber in-line interferometer vital signs monitoring Optics. Light QC350-467 Tan Fengze Lyu Weimin Chen Shuyang Liu Zhengyong Yu Changyuan Contactless vital signs monitoring based on few-mode and multi-core fibers
description	Few-mode and multi-core fibers are proposed and demonstrated for contactless vital signs monitoring in this paper. In-line optical fiber interferometers using few-mode and multi-core fibers are designed and offset splicing is utilized for mode excitation. Extinction ratio and insertion loss are analyzed experimentally under different offset distances. The fabricated in-line interferometers are packaged under the mattress to realize contactless vital signs signals collection. By using filtering techniques, both respiration and heartbeat signals can be recovered successfully, and respiration as well as heartbeat ratio are obtained. Mode excitation and interference are theoretically analyzed in few-mode fiber while curvature sensing experiments using multi-core fiber interferometer are performed to verify its excellent performance on vital signs monitoring. The successful demonstration on contactless vital signs monitoring makes few-mode and multi-core fibers promising candidates for healthcare applications.
format	article
author	Tan Fengze Lyu Weimin Chen Shuyang Liu Zhengyong Yu Changyuan
author_facet	Tan Fengze Lyu Weimin Chen Shuyang Liu Zhengyong Yu Changyuan
author_sort	Tan Fengze
title	Contactless vital signs monitoring based on few-mode and multi-core fibers
title_short	Contactless vital signs monitoring based on few-mode and multi-core fibers
title_full	Contactless vital signs monitoring based on few-mode and multi-core fibers
title_fullStr	Contactless vital signs monitoring based on few-mode and multi-core fibers
title_full_unstemmed	Contactless vital signs monitoring based on few-mode and multi-core fibers
title_sort	contactless vital signs monitoring based on few-mode and multi-core fibers
publisher	Institue of Optics and Electronics, Chinese Academy of Sciences
publishDate	2020
url	https://doaj.org/article/df0f28569c1c4ee096d0063809155def
work_keys_str_mv	AT tanfengze contactlessvitalsignsmonitoringbasedonfewmodeandmulticorefibers AT lyuweimin contactlessvitalsignsmonitoringbasedonfewmodeandmulticorefibers AT chenshuyang contactlessvitalsignsmonitoringbasedonfewmodeandmulticorefibers AT liuzhengyong contactlessvitalsignsmonitoringbasedonfewmodeandmulticorefibers AT yuchangyuan contactlessvitalsignsmonitoringbasedonfewmodeandmulticorefibers
_version_	1718440147878412288

Contactless vital signs monitoring based on few-mode and multi-core fibers

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