Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81723
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dc.contributorDepartment of Electronic and Information Engineering-
dc.creatorDang, YLen_US
dc.creatorZhao, ZYen_US
dc.creatorWang, XFen_US
dc.creatorLiao, RLen_US
dc.creatorLu, Cen_US
dc.date.accessioned2020-02-10T12:28:49Z-
dc.date.available2020-02-10T12:28:49Z-
dc.identifier.issn2169-3536en_US
dc.identifier.urihttp://hdl.handle.net/10397/81723-
dc.language.isoenen_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 License. For more information, see http://creativecommons.org/licenses/by/4.0/en_US
dc.rightsThe following publication Y. Dang, Z. Zhao, X. Wang, R. Liao and C. Lu, "Simultaneous Distributed Vibration and Temperature Sensing Using Multicore Fiber," in IEEE Access, vol. 7, pp. 151818-151826 is available at https://dx.doi.org/10.1109/ACCESS.2019.2948213en_US
dc.subjectTemperature sensorsen_US
dc.subjectTemperature measurementen_US
dc.subjectOptical fiber sensorsen_US
dc.subjectVibrationsen_US
dc.subjectOptical fiber polarizationen_US
dc.subjectMulticore fiberen_US
dc.subjectSpace-division multiplexingen_US
dc.subjectDistributed temperature sensingen_US
dc.subjectDistributed vibration sensingen_US
dc.titleSimultaneous distributed vibration and temperature sensing using multicore fiberen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage151818en_US
dc.identifier.epage151826en_US
dc.identifier.volume7en_US
dc.identifier.doi10.1109/ACCESS.2019.2948213en_US
dcterms.abstractDistributed optical fiber sensing that enables simultaneous vibration and temperature monitoring is demonstrated in this work, which is achieved by implementing polarization optical time-domain reflectometry (P-OTDR) and Raman optical time-domain reflectometry (ROTDR) respectively through space-division multiplexed (SDM) configuration in different cores of a multicore fiber (MCF). Optimized system setup is obtained in the proposed hybrid system, where only one laser source is used, and the generated pulse is shared by the two reflectometers. Owing to the reason that separate interrogation fiber cores are used by the two reflectometers, the proposed hybrid system allows for simultaneous measurements of spontaneous Raman and Rayleigh scattering signals, thus it no longer suffers from the incompatible pump power levels issue, which results from different pump power demands, and hinders the implementation of the hybrid system in single mode fiber due to the fiber nonlinear effects imposed restriction. In addition, in order to extend the sensing range, we also explore the employment of wavelet transform denoising technique in the improvement of signal-to-noise ratio of ROTDR measurement. Eventually, simultaneous distributed vibration and temperature sensing in 5.76 km sensing range with 3 m spatial resolution and 0.57 C temperature uncertainty has been demonstrated. The proposed hybrid sensing system has the outstanding advantage of high reliability, since the cross-sensitivity issue is effectively mitigated, which shows great potential for pipeline monitoring in oil and gas industry.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationIEEE access, 18 Oct. 2019, v. 7, p. 151818-151826en_US
dcterms.isPartOfIEEE accessen_US
dcterms.issued2019-
dc.identifier.isiWOS:000497163000114-
dc.identifier.scopus2-s2.0-85078251053-
dc.description.validate202002 bcrc-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_Scopus/WOSen_US
dc.description.pubStatusPublisheden_US
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