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Frequency-Modulated Optical Feedback Interferometry for Nanometric Scale Vibrometry
dc.contributor.author | Jha, Ajit |
dc.contributor.author | Azcona Guerrero, Francisco Javier |
dc.contributor.author | Royo Royo, Santiago |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria |
dc.date.accessioned | 2016-09-20T08:35:47Z |
dc.date.available | 2016-09-20T08:35:47Z |
dc.date.issued | 2016-02-18 |
dc.identifier.citation | Jha, A., Azcona, F. J., Royo, S. Frequency-Modulated Optical Feedback Interferometry for Nanometric Scale Vibrometry. "IEEE photonics technology letters", 18 Febrer 2016, vol. 28, núm. 11, p. 1217-1220. |
dc.identifier.issn | 1041-1135 |
dc.identifier.uri | http://hdl.handle.net/2117/90059 |
dc.description.abstract | We demonstrate a novel method that makes an efficient use of laser nonlinear dynamics when subject to optical self-injection for subwavelength displacement sensing purposes. The proposed methodology combines two different phenomena taking place inside the laser cavity: optical self-injection, which results in optical feedback interference, and laser continuous wave frequency modulation, giving rise to a wavelength sweeping effect in the laser's emission. We present a combination of these phenomena to measure vibration amplitudes below lambda/2 with the resolutions of a few nanometers, bandwidth dependent upon the distance of external target, amplitude, and frequency of current modulation. The basic theoretical details and a mathematical model are presented for the developed measurement principle. Experimental results with the system working as a vibrometer to measure a target vibration of amplitude lambda/5 (137.5 nm) with a mean peak-to-peak error of 2.4 nm just by pointing the laser diode onto the target and applying some signal processing are also demonstrated. |
dc.format.extent | 4 p. |
dc.language.iso | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Ciències de la visió::Òptica física |
dc.subject | Àrees temàtiques de la UPC::Enginyeria electrònica::Optoelectrònica::Làser |
dc.subject | Àrees temàtiques de la UPC::Física::Acústica |
dc.subject.lcsh | Optical detectors |
dc.subject.lcsh | Injection lasers |
dc.subject.lcsh | Interferometry |
dc.subject.lcsh | Vibrators |
dc.subject.lcsh | Nanoscience |
dc.subject.other | Optical feedback |
dc.subject.other | Doppler frequency |
dc.subject.other | optical sensors |
dc.subject.other | nano displacement sensing |
dc.subject.other | injection locking |
dc.subject.other | LASER-DIODE |
dc.subject.other | SEMICONDUCTOR-LASERS |
dc.title | Frequency-Modulated Optical Feedback Interferometry for Nanometric Scale Vibrometry |
dc.type | Article |
dc.subject.lemac | Detectors |
dc.subject.lemac | Làsers |
dc.subject.lemac | Interferometria |
dc.subject.lemac | Vibració |
dc.subject.lemac | Nanociència |
dc.contributor.group | Universitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica |
dc.identifier.doi | 10.1109/LPT.2016.2531790 |
dc.rights.access | Open Access |
local.identifier.drac | 18733215 |
dc.description.version | Postprint (author's final draft) |
dc.relation.projectid | info:eu-repo/grantAgreement/MINECO//DPI2014-56881-R/ES/TECNICAS DE SECCIONADO OPTICO UTILIZANDO INTERFEROMETRIA AUTORREALIMENTADA: APLICACIONES EN BIOFOTONICA/ |
local.citation.author | Jha, A.; Azcona, F. J.; Royo, S. |
local.citation.publicationName | IEEE photonics technology letters |
local.citation.volume | 28 |
local.citation.number | 11 |
local.citation.startingPage | 1217 |
local.citation.endingPage | 1220 |
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