Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4546
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dc.contributorDepartment of Electrical Engineering-
dc.creatorGuo, T-
dc.creatorShao, L-
dc.creatorTam, HY-
dc.creatorKrug, PA-
dc.creatorAlbert, J-
dc.date.accessioned2014-12-11T08:24:56Z-
dc.date.available2014-12-11T08:24:56Z-
dc.identifier.urihttp://hdl.handle.net/10397/4546-
dc.language.isoenen_US
dc.publisherOptical Society of Americaen_US
dc.rights© 2009 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-23-20651. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.en_US
dc.subjectAccelerometersen_US
dc.subjectFiber Bragg gratingsen_US
dc.subjectLighten_US
dc.subjectLight sourcesen_US
dc.subjectResonanceen_US
dc.subjectSensorsen_US
dc.subjectVibrations (mechanical)en_US
dc.titleTilted fiber grating accelerometer incorporating an abrupt biconical taper for cladding to core recouplingen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage20651-
dc.identifier.epage20660-
dc.identifier.volume17-
dc.identifier.issue23-
dc.identifier.doi10.1364/OE.17.020651-
dcterms.abstractWe demonstrate a compact power-referenced fiber-optic accelerometer using a weakly tilted fiber Bragg grating (TFBG) combined with an abrupt biconical taper. The electric-arc-heating induced taper is located a short distance upstream from the TFBG and functions as a bridge to recouple the TFBG-excited lower-order cladding modes back into the fiber core. This recoupling is extremely sensitive to microbending. We avoid complex wavelength interrogation by simply monitoring power change in reflection, which we show to be proportional to acceleration. In addition, the Bragg resonance is virtually unaffected by fiber bending and can be used as a power reference to cancel out any light source fluctuations. The proposed sensing configuration provides a constant linear response (nonlinearity < 1%) over a vibration frequency range from DC to 250 Hz. The upper vibration frequency limit of measurement is determined by mechanical resonance, and can be tuned by varying the sensor length. The tip-reflection sensing feature enables the sensor head to be made small enough (20~100 mm in length and 2 mm in diameter) for embedded detection. The polymer-tube-package makes the sensor sufficiently stiff for in-field acceleration measurement.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationOptics express, 9 Nov. 2009, v. 17, no. 23, p. 20651-20660-
dcterms.isPartOfOptics express-
dcterms.issued2009-11-09-
dc.identifier.isiWOS:000271630000004-
dc.identifier.scopus2-s2.0-70749086507-
dc.identifier.eissn1094-4087-
dc.identifier.rosgroupidr48009-
dc.description.ros2009-2010 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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