Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/10580
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dc.contributor.authorTheodosiou, Antreas-
dc.contributor.authorLacraz, Amédéé-
dc.contributor.authorStassis, Andreas-
dc.contributor.authorKoutsides, Charalambos-
dc.contributor.authorKomodromos, Michael-
dc.contributor.authorKalli, Kyriacos-
dc.date.accessioned2018-01-12T10:21:39Z-
dc.date.available2018-01-12T10:21:39Z-
dc.date.issued2017-11-22-
dc.identifier.citationJournal of Lightwave Technology, Volume 35, Issue 24, December 15 2017, Pages 5404 - 5410en_US
dc.identifier.issn0733-8724-
dc.identifier.issn10.1109/JLT.2017.2776862-
dc.identifier.issn2-s2.0-85035747965-
dc.identifier.issnhttp://api.elsevier.com/content/abstract/scopus_id/85035747965-
dc.identifier.urihttp://ktisis.cut.ac.cy/handle/10488/10580-
dc.description.abstractWe report on the development and characterization of single peak fiber Bragg gratings (FBGs) in polymer optical fiber (POF). We use a multimode gradient index cyclic transparent optical polymer (CYTOP) fiber, where the FBGs are inscribed with a femtosecond laser. We adapt the direct-write, plane-by-plane inscription method, where the beam is scanned transversely across the core, to create refractive index changes. In order to reduce the number of fiber modes coupling to the grating, we limit the FBG's spatial extent to the central part of the core, in the region where the gradient index profile peaks. In this way, we are able to excite the strongest lower order modes thereby generating single peak POF-FBG spectra. We support our experimental results with modeling using the bi-directional beam propagation method (Bi-BPM). Furthermore, a FBG array is used as a quasi-distributed sensor, recovering the vibration response of a freely suspended metal beam, using a 6-m sensing strand. The FBGs are multiplexed using a high-speed commercial wavelength demodulator, the output of which provides wavelength- and time-dependent displacement information. The results are compared directly with the performance of a silica-fiber-based FBG sensor array, and show a significant sensor sensitivity improvement for the polymer fiber to dynamic strain.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.rights© Copyright 2018 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.en_US
dc.subjectOptical sensing and sensorsen_US
dc.subjectPolymer waveguidesen_US
dc.subjectFiber optics sensorsen_US
dc.subjectFibre Bragg gratingsen_US
dc.titlePlane-by-Plane femtosecond laser inscription method for single-peak Bragg gratings in multimode CYTOP polymer optical fibreen_US
dc.typeArticleen_US
dc.doihttp://dx.doi.org/10.1109/JLT.2017.2776862en_US
dc.collaborationCyprus University of Technologyen_US
dc.collaborationFrederick University of Cyprusen_US
dc.subject.categoryMechanical Engineeringen_US
dc.journalsSubscription Journalen_US
dc.countryCyprusen_US
dc.subject.fieldEngineering and Technologyen_US
dc.identifier.doi10.1109/JLT.2017.2776862-
dc.identifier.scopus2-s2.0-85035747965-
dc.identifier.urlhttp://api.elsevier.com/content/abstract/scopus_id/85035747965-
cut.common.academicyear2017-2018en_US
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