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Highly sensitive strain sensor based on composite interference established within S-tapered multimode fiber structure

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dc.contributor.author Tian, Ke
dc.contributor.author Zhang, Meng
dc.contributor.author Farrell, Gerald
dc.contributor.author Wang, Ruoning
dc.contributor.author Lewis, Elfed
dc.contributor.author Wang, Pengfei
dc.date.accessioned 2019-01-14T16:35:38Z
dc.date.available 2019-01-14T16:35:38Z
dc.date.issued 2018
dc.identifier.uri http://hdl.handle.net/10344/7470
dc.description peer-reviewed en_US
dc.description.abstract In this paper, a novel strain sensor based on composite interference established within an S-tapered multimode (STM) fiber structure is proposed and experimentally demonstrated. The STM fibre structure is simply realized by non-axially tapering a traditional single-mode-multimode-single-mode (SMS) fiber into S-shape using a fusion splicer. This fabricated S-tapered structure provides an extra Mach-Zehnder interferometer (MZI) that is introduced within the multimode fibre (MMF) section; therefore, composite interference based on the inherent multimode interference (MMI) of an SMS and the introduced MZI is successfully established. This resultant composite interference greatly enhances the performance of traditional SMS fibre structures for strain sensing, with a maximum strain measurement sensitivity as high as −103.8 pm/με achieved with a detectable strain resolution of 0.2 με. Benefiting from the experimentally determined high sensitivity and good repeatability, this low-cost strain sensor can be realistically applied in many areas where high accuracy strain measurement is required. en_US
dc.language.iso eng en_US
dc.publisher Optical Society of America en_US
dc.relation.ispartofseries Optics Express;26 (26), pp. 33982-33992
dc.relation.uri https://doi.org/10.1364/OE.26.033982
dc.rights This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website:https://doi.org/10.1364/OE.26.033982 . Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. en_US
dc.subject novel strain sensor en_US
dc.title Highly sensitive strain sensor based on composite interference established within S-tapered multimode fiber structure en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1364/OE.26.033982
dc.contributor.sponsor National Natural Science Foundation of China en_US
dc.relation.projectid 61575050 en_US
dc.relation.projectid ZD2016012 en_US
dc.relation.projectid IOSKL2016KF03 en_US
dc.relation.projectid HEUGIP201820 en_US
dc.relation.projectid B13015 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


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