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dc.contributor.authorGoel, Charuen_US
dc.contributor.authorZang, Jichaoen_US
dc.contributor.authorParrot, Matyasen_US
dc.contributor.authorYoo, Seongwooen_US
dc.identifier.citationGoel, C., Zang, J., Parrot, M. & Yoo, S. (2021). Temperature-insensitive mechanical sensor using multi-modal behavior of antiresonant hollow-core fibers. Journal of Lightwave Technology, 39(12), 3998-4005.
dc.description.abstractWe present the first report on a compact, temperature-insensitive, multi-axial mechanical force sensor based on a single-core antiresonant hollow-core fiber (ARHCF). Single-core antiresonant fibers are inherently few-moded in a short length and show characteristic multimode interference pattern in their transmission spectrum. We report here a simple technique that enhances the interaction between the interfering modes in these fibers, giving rise to up to four-fold increase in the peak-to-peak amplitude of the interference pattern. The enhanced interference pattern is shown to be responsive to external mechanical forces, like longitudinal and transverse strain and curvature, with distinguishable linear responses. Transverse and longitudinal mechanical forces affect different attributes of the interference pattern, making the proposed sensor suitable for their simultaneous sensing. The temperature sensitivity of the sensor is found to be 3.3 pm/°C suggesting negligible thermal crosstalk while measuring the effect of mechanical forces. The sensor has a compact configuration and is inherently insensitive to polarization of light used.en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofJournal of Lightwave Technologyen_US
dc.rights© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleTemperature-insensitive mechanical sensor using multi-modal behavior of antiresonant hollow-core fibersen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.researchThe Photonics Instituteen_US
dc.description.versionSubmitted/Accepted versionen_US
dc.subject.keywordsOptical Fibreen_US
dc.subject.keywordsFiber Sensoren_US
dc.description.acknowledgementThis work was partly supported by National Research Foundation, Singapore, through Quantum Engineering Programme (QEP-P4).en_US
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