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dc.contributor.authorJha, Ajit
dc.contributor.authorAzcona Guerrero, Francisco Javier
dc.contributor.authorYáñez Alvarado, Carlos René
dc.contributor.authorRoyo Royo, Santiago
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Òptica i Optometria
dc.date.accessioned2016-03-17T15:59:55Z
dc.date.available2016-03-17T15:59:55Z
dc.date.issued2015-12-01
dc.identifier.citationJha, A., Azcona, F. J., Yañez, C., Royo, S. Extraction of vibration parameters from optical feedback interferometry signals using wavelets. "Applied optics", 01 Desembre 2015, vol. 54, núm. 34, p. 10106-10113.
dc.identifier.issn1559-128X
dc.identifier.urihttp://hdl.handle.net/2117/84657
dc.description.abstractThis paper proposes the use of the wavelet transform as a technique that is suited for fringe detection and analysis of optical feedback interferometry (OFI) signals, thus allowing the retrieval of extremely small physical motion phenomena. A novel algorithm based on wavelet transform is used to process the OFI signal simultaneously in the time and frequency domains, enabling precise detection of signal fringes and, thus, the extraction of amplitude features of the vibrating target with error in the order of 0.1 lambda. Furthermore, using a complex Morlet wavelet as an analyzing wavelet enables us to extract important information from the time envelope of the OFI signal. Such an envelope can be useful in detecting fringes even in the presence of speckle reducing the error in a displacement reconstruction. Examples of OFI applications, including nanometric displacement sensing without direction ambiguity as well as the measurement of the frequency and velocity of vibrating targets and the detection in time of no periodic events, are also presented using this wavelet approach. (C) 2015 Optical Society of America
dc.format.extent8 p.
dc.language.isoeng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica::Optoelectrònica::Làser
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal
dc.subjectÀrees temàtiques de la UPC::Ciències de la visió::Òptica física
dc.subject.lcshInterferometry
dc.subject.lcshInjection lasers
dc.subject.lcshLaser speckle
dc.subject.lcshWavelets (Mathematics)
dc.subject.lcshVibration
dc.subject.otherSELF-MIXING INTERFEROMETRY
dc.subject.otherSEMICONDUCTOR-LASERS
dc.subject.otherDISPLACEMENTS
dc.subject.otherSPECKLE
dc.subject.otherDIODE
dc.subject.otherTRANSFORMS
dc.subject.otherSENSOR
dc.subject.otherNOISE
dc.titleExtraction of vibration parameters from optical feedback interferometry signals using wavelets
dc.typeArticle
dc.subject.lemacInterferometria
dc.subject.lemacOnes (Matemàtica)
dc.subject.lemacVibració
dc.subject.lemacLàsers
dc.contributor.groupUniversitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica
dc.identifier.doi10.1364/AO.54.010106
dc.rights.accessOpen Access
local.identifier.drac17511332
dc.description.versionPreprint
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO//DPI2014-56881-R/ES/TECNICAS DE SECCIONADO OPTICO UTILIZANDO INTERFEROMETRIA AUTORREALIMENTADA: APLICACIONES EN BIOFOTONICA/
local.citation.authorJha, A.; Azcona, F. J.; Yañez, C.; Royo, S.
local.citation.publicationNameApplied optics
local.citation.volume54
local.citation.number34
local.citation.startingPage10106
local.citation.endingPage10113


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