Mostra el registre d'ítem simple
Improvement of the signal-to-noise ratio in a low power self-mixing interferometer using a coupled interferometric effect
dc.contributor.author | Yáñez Alvarado, Carlos René |
dc.contributor.author | Royo Royo, Santiago |
dc.contributor.other | Universitat Politècnica de Catalunya. Doctorat en Enginyeria Òptica |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria |
dc.date.accessioned | 2021-03-01T14:30:29Z |
dc.date.available | 2021-03-01T14:30:29Z |
dc.date.issued | 2020-12-07 |
dc.identifier.citation | Yañez, C.; Royo, S. Improvement of the signal-to-noise ratio in a low power self-mixing interferometer using a coupled interferometric effect. "Optics express", 7 Desembre 2020, vol. 28, núm. 25, p. 37708-37720. |
dc.identifier.issn | 1094-4087 |
dc.identifier.uri | http://hdl.handle.net/2117/340653 |
dc.description.abstract | We present experimental results of a low-emission self-mixing interferometer that uses a coupled interferometric effect to improve the signal produced by a vibrating target. This method is intended to be useful in applications where the target is prone to be damaged by high-intensity laser sources. The beam of a Fabry-Perot laser diode is split and ~21% of the original emission is used to measure the harmonic micro-displacements of the target using the self-mixing effect. A portion of the residual beam, which also carries the interferometric information related to the target displacement, is reinjected back into the laser cavity by means of a fixed reflector, causing a second interferometric phenomenon that improves the signal-to-noise ratio of the measurement by up to ~13 dB. A theoretical description of the phenomena is also proposed. Further, we apply this technique to the two most common self-mixing sensing schemes: internal photodiode and junction voltage. The reported results show good agreement with theory and prove the capability of the method to enhance the SNR in SMI schemes. |
dc.description.sponsorship | Consejo Nacional de Ciencia y Tecnología (472102); Ministerio de Economía y Competitividad (FIS2017-89850R). |
dc.format.extent | 13 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Ciències de la visió |
dc.subject.lcsh | Interferometry |
dc.title | Improvement of the signal-to-noise ratio in a low power self-mixing interferometer using a coupled interferometric effect |
dc.type | Article |
dc.subject.lemac | Interferometria |
dc.contributor.group | Universitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica |
dc.identifier.doi | 10.1364/OE.405997 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-28-25-37708&id=444110 |
dc.rights.access | Open Access |
local.identifier.drac | 30537562 |
dc.description.version | Postprint (published version) |
dc.relation.projectid | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2017-89850-R/ES/SENSORES LASER MEJORADOS EN MEDIOS DISPERSORES MEDIANTE POLARIZACION/ |
local.citation.author | Yañez, C.; Royo, S. |
local.citation.publicationName | Optics express |
local.citation.volume | 28 |
local.citation.number | 25 |
local.citation.startingPage | 37708 |
local.citation.endingPage | 37720 |
Fitxers d'aquest items
Aquest ítem apareix a les col·leccions següents
-
Articles de revista [149]
-
Articles de revista [47]
-
Articles de revista [447]