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dc.contributor.authorKalli, Kyriacos-
dc.contributor.authorSmith, Graham N.-
dc.contributor.authorAllsop, Thomas D P-
dc.contributor.authorNeal, Ron M.-
dc.contributor.authorSugden, Kate-
dc.contributor.authorCulverhouse, Phil F.-
dc.contributor.authorBennion, Ian-
dc.contributor.authorKoutsides, Charalambos-
dc.contributor.otherΚαλλή, Κυριάκος-
dc.contributor.otherΚουτσίδης, Χαράλαμπος-
dc.identifier.citation(2011) Proceedings of SPIE - The International Society for Optical Engineering, 7753, art. no. 77536N; 21st International Conference on Optical Fiber Sensors; Ottawa, ON; Canada; 15 May 2011 through 19 May 2011en_US
dc.description.abstractA novel device for the detection and characterisation of static magnetic fields is presented. It consists of a femtosecond laser inscribed fibre Bragg grating (FBG) that is incorporated into an optical fibre with a femtosecond laser micromachined slot. The symmetry of the fibre is broken by the micro-slot, producing non-uniform strain across the fibre cross section. The sensing region is coated with Terfenol-D making the device sensitive to static magnetic fields, whereas the symmetry breaking results in a vectorial sensor for the detection of magnetic fields as low as 0.046 mT with a resolution of ±0.3mT in transmission and ±0.7mT in reflection. The sensor output is directly wavelength encoded from the FBG filtering, leading to simple demodulation through the monitoring of wavelength shifts that result as the fibre structure changes shape in response to the external magnetic field. The use of a femtosecond laser to both inscribe the FBG and micro-machine the slot in a single stage, prior to coating the device, significantly simplifies the sensor fabrication.en_US
dc.description.sponsorshipOz Optics,Simbol Test Systems, Inc.,FISO Technologies, Inc.,CMC Microsystems Corporation,Innovative Economy: National Strategic Reference Frameworken_US
dc.publisherSpie Digital Libraryen
dc.rights© 2011 SPIEen_US
dc.subjectFemtosecond lasersen_US
dc.subjectOptical fibersen_US
dc.titleFemtosecond laser inscribed bragg sensor in terfenol-d coated optical fibre with ablated microslot for the detection of static magnetic fieldsen_US
dc.typeConference Papersen_US
dc.collaborationCyprus University of Technologyen_US
dc.collaborationUniversity of Plymouthen_US
dc.collaborationAston Universityen_US
dc.subject.categoryElectrical Engineering - Electronic Engineering - Information Engineeringen_US
dc.countryUnited Kingdomen_US
dc.subject.fieldEngineering and Technologyen_US
dc.publicationPeer Revieweden_US
dc.relation.conferenceInternational Conference on Optical Fiber Sensorsen_US
item.fulltextNo Fulltext-
item.cerifentitytypePublications- of Electrical Engineering, Computer Engineering and Informatics- of Electrical Engineering, Computer Engineering and Informatics- of Engineering and Technology- of Engineering and Technology- of Engineering and Technology- of Engineering and Technology-
Appears in Collections:Δημοσιεύσεις σε συνέδρια /Conference papers - poster -presentation
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