Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/77889
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dc.contributorPhotonics Research Centre-
dc.contributorDepartment of Electrical Engineering-
dc.creatorLiu, Z-
dc.creatorHtein, L-
dc.creatorLee, KK-
dc.creatorLau, KT-
dc.creatorTam, HY-
dc.date.accessioned2018-08-28T01:35:25Z-
dc.date.available2018-08-28T01:35:25Z-
dc.identifier.urihttp://hdl.handle.net/10397/77889-
dc.language.isoenen_US
dc.publisherNature Publishing Groupen_US
dc.rightsOpen Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.en_US
dc.rights© The Author(s) 2017en_US
dc.rightsThe following publication Liu, Z., Htein, L., Lee, K. et al. Large dynamic range pressure sensor based on two semicircle-holes microstructured fiber. Sci Rep 8, 65 (2018) is available at https://dx.doi.org/10.1038/s41598-017-18245-6en_US
dc.titleLarge dynamic range pressure sensor based on two semicircle-holes microstructured fiberen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume8-
dc.identifier.issue1-
dc.identifier.doi10.1038/s41598-017-18245-6-
dcterms.abstractThis paper presents a sensitive and large dynamic range pressure sensor based on a novel birefringence microstructured optical fiber (MOF) deployed in a Sagnac interferometer configuration. The MOF has two large semicircle holes in the cladding and a rectangular strut with germanium-doped core in the center. The fiber structure permits surrounding pressure to induce large effective index difference between the two polarized modes. The calculated and measured group birefringence of the fiber are 1.49 × 10-4, 1.23 × 10-4, respectively, at the wavelength of 1550 nm. Experimental results shown that the pressure sensitivity of the sensor varied from 45,000 pm/MPa to 50,000 pm/MPa, and minimum detectable pressure of 80 Pa and dynamic range of better than 116 dB could be achieved with the novel fiber sensor. The proposed sensor could be used in harsh environment and is an ideal candidate for downhole applications where high pressure measurement at elevated temperature up to 250 °C is needed.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationScientific reports, 8 2018, v. 8, no. 1, 65, p. 1-9-
dcterms.isPartOfScientific reports-
dcterms.issued2018-
dc.identifier.isiWOS:000419442500002-
dc.identifier.scopus2-s2.0-85042802650-
dc.identifier.eissn2045-2322-
dc.identifier.artn65-
dc.description.validate201808 bcrc-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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