Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81275
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dc.contributor.authorSomepalli, Ben_US
dc.contributor.authorVenkitesh, Den_US
dc.contributor.authorLu, Cen_US
dc.contributor.authorSrinivasan, Ben_US
dc.date.accessioned2019-09-20T00:54:52Z-
dc.date.available2019-09-20T00:54:52Z-
dc.date.issued2019-
dc.identifier.citationOptics express, 8 July 2019, v. 27, no. 14, p. 19486-19502en_US
dc.identifier.urihttp://hdl.handle.net/10397/81275-
dc.description.abstractWe report a novel technique to detect dynamic strain variations simultaneously at multiple locations. Our technique is based on Brillouin optical correlation domain analysis implemented through external modulation to generate multiple independently-accessible correlation peaks within the sensing fiber. Experiments are carried out to demonstrate the precise determination of Brillouin frequency shift (BFS) from multiple locations independently. As a proof of principle, two correlation peaks are generated within a 1 km long fiber and their independent tunability is verified experimentally by mapping the spatial profile of the two correlations. We also experimentally demonstrate the detection of dynamic strain variations at two locations simultaneously, each with a spatial resolution of 60 cm over 100 m long fiber.en_US
dc.description.sponsorshipDepartment of Electronic and Information Engineeringen_US
dc.language.isoenen_US
dc.publisherOptical Society of Americaen_US
dc.relation.ispartofOptics expressen_US
dc.rights© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (https://www.osapublishing.org/library/license_v1.cfm#VOR-OA)en_US
dc.rightsJournal © 2019en_US
dc.rightsThe following publication B. Somepalli, D. Venkitesh, C. Lu, and B. Srinivasan, "Multi-point dynamic strain sensing using external modulation-based Brillouin optical correlation domain analysis," Opt. Express 27, 19486-19502 (2019) is available at https://dx.doi.org/10.1364/OE.27.019486en_US
dc.titleMulti-point dynamic strain sensing using external modulation-based brillouin optical correlation domain analysisen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage19486-
dc.identifier.epage19502-
dc.identifier.volume27-
dc.identifier.issue14-
dc.identifier.doi10.1364/OE.27.019486-
dc.identifier.isiWOS:000474429600035-
dc.identifier.eissn1094-4087-
dc.description.validate201909 bcrc-
dc.description.oapublished_final-
Appears in Collections:Journal/Magazine Article
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