Mechanical and optical optimization of a fiber-optic interferometric acoustic sensor

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buir.advisorDana, Aykutlu
buir.type.qualificationlevelMaster's
buir.type.qualificationnameMS (Master of Science)
buir.type.qualificationtitleMaterials Science and Nanotechnology
dc.contributor.authorAbdelal, Ayşegül
dc.date.accessioned2016-04-20T08:13:32Z
dc.date.available2016-04-20T08:13:32Z
dc.date.copyright2015-08
dc.date.issued2015-08
dc.date.submitted31-08-2015
dc.descriptionCataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (leaves 71-75).en_US
dc.descriptionThesis (M.S.): Bilkent University, Materials Science and Nanotechnology Program, İhsan Doğramacı Bilkent University, 2015.en_US
dc.description.abstractExternal cavity Fiber optic interferometric microphones have the potential to operate at the acustic impedance derived noise limit, with a noise oor close to 1uPa=pHz. This can be achieved with careful optimization of both the mechanical and optical properties of such a sensor. We describe models for the acoustic-to-displacement and displacement-to-optical signal transduction in a Fabry-Perot (FP) type interferometric microphone. We present experimental results and nite element calculations to validate the models. Based on the models, requirements to achieve ultimate sensitivity and noise level in a FP microphone are discussed. Demonstration of a microphone with 30 dBA noise foor is presented using partially optimized membrane and interferometer.en_US
dc.description.provenanceSubmitted by Betül Özen (ozen@bilkent.edu.tr) on 2016-04-20T08:13:32Z No. of bitstreams: 1 AysegulAbdelalTez.pdf: 3202626 bytes, checksum: fa93e7c4e3847337590aab5400266069 (MD5)en
dc.description.provenanceMade available in DSpace on 2016-04-20T08:13:32Z (GMT). No. of bitstreams: 1 AysegulAbdelalTez.pdf: 3202626 bytes, checksum: fa93e7c4e3847337590aab5400266069 (MD5) Previous issue date: 2015-08en
dc.description.statementofresponsibilityby Ayşegül Abdelal.en_US
dc.embargo.release2016-08-31
dc.format.extentxiv, 75 leaves.en_US
dc.identifier.itemidB151128
dc.identifier.urihttp://hdl.handle.net/11693/28949
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectFabry- Perot interferometeren_US
dc.subjectOptical microphoneen_US
dc.subjectAcoustic sensoren_US
dc.titleMechanical and optical optimization of a fiber-optic interferometric acoustic sensoren_US
dc.title.alternativeFabry-perot interferometrik akustik sensörün mekanik ve optik optimizasyonuen_US
dc.typeThesisen_US

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