Signal processing techniques for optical fiber sensors using white light interferometry

Simple item page
dc.contributor.authorBhatia, Vikramen
dc.contributor.committeechairMurphy, Kent A.en
dc.contributor.committeememberClaus, Richard O.en
dc.contributor.committeememberJacobs, Iraen
dc.contributor.committeememberWang, Anboen
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:46:19Zen
dc.date.adate2009-09-19en
dc.date.available2014-03-14T21:46:19Zen
dc.date.issued1993-09-05en
dc.date.rdate2009-09-19en
dc.date.sdate2009-09-19en
dc.description.abstractConventional fiber optic interferometric sensors employing a monochromatic source prove to be inadequate for applications requiring absolute, real-time value of magnitude and direction of the applied perturbation. This limitation can be overcome by using a broadband light source to extract unambiguous information from the sensor in the wavelength domain. Several variations in the signal processing techniques for white light interferometry are discussed and compared in terms of resolution, bandwidth and cost. A detailed analysis is made of the principle of operation and basic features of the commercially available absolute sensing system. This compact system is self calibrating, has a 100 micro-strain Ole) strain and 2°C temperature resolution and is ideal for applications in environments where the parameter to be measured is static or quasi-static. High finesse Fabry-Perot cavities are employed to obtain almost an order of magnitude sensitivity improvement over conventional low finesse cavities. The principle of white light interferometry is extended to absolute axial stain and temperature sensing in two-mode, elliptical-core fibers. Other novel applications, such as to operation of photo induced refractive index gratings and fiber characterization are proposed.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 81 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-09192009-040440en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-09192009-040440/en
dc.identifier.urihttp://hdl.handle.net/10919/44866en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1993.B527.pdfen
dc.relation.isformatofOCLC# 29815438en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1993.B527en
dc.subject.lcshFabry-Perot interferometersen
dc.subject.lcshInterferometryen
dc.subject.lcshOptical fibersen
dc.subject.lcshSignal processingen
dc.titleSignal processing techniques for optical fiber sensors using white light interferometryen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
LD5655.V855_1993.B527.pdf
Size:
3.05 MB
Format:
Adobe Portable Document Format
Download

Collections

Masters Theses