000118224 001__ 118224 000118224 005__ 20240319081024.0 000118224 0247_ $$2doi$$a10.1109/LPT.2022.3181819 000118224 0248_ $$2sideral$$a129668 000118224 037__ $$aART-2022-129668 000118224 041__ $$aeng 000118224 100__ $$0(orcid)0000-0001-5898-8777$$aPreciado Garbayo, J. 000118224 245__ $$aTime-Expanded F-OTDR based on binary sequences 000118224 260__ $$c2022 000118224 5060_ $$aAccess copy available to the general public$$fUnrestricted 000118224 5203_ $$aIn this paper, the capabilities of time-expanded phase-sensitive optical time-domain reflectometry (TE F-OTDR) using binary sequences are demonstrated. We present a highly flexible and integrable TE F-OTDR approach that allows a customized distributed optical fiber sensor (range, spatial resolution, and acoustic sampling) by simply changing the length of the binary sequence and the reference clock frequencies of the binary sequence generators. The here presented architecture eliminates the need for the cumbersome arbitrary signal generators used to date to create the dual-comb spectra for interrogating the fiber. In this approach, the use of large binary sequences allows us to obtain dual combs in a simple and cost-effective way. Spatial resolution of ~1 cm is achieved, attaining ~15, 000 independent measurements points along the interrogated fiber, with a capability of sensing ~30, 000 measurements points. 000118224 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000118224 590__ $$a2.6$$b2022 000118224 592__ $$a0.776$$b2022 000118224 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b145 / 274 = 0.529$$c2022$$dQ3$$eT2 000118224 593__ $$aAtomic and Molecular Physics, and Optics$$c2022$$dQ2 000118224 591__ $$aPHYSICS, APPLIED$$b84 / 160 = 0.525$$c2022$$dQ3$$eT2 000118224 593__ $$aElectronic, Optical and Magnetic Materials$$c2022$$dQ2 000118224 591__ $$aOPTICS$$b51 / 99 = 0.515$$c2022$$dQ3$$eT2 000118224 593__ $$aElectrical and Electronic Engineering$$c2022$$dQ2 000118224 594__ $$a5.4$$b2022 000118224 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000118224 700__ $$aSoriano Amat, M. 000118224 700__ $$0(orcid)0000-0002-4094-3826$$aSevillano, P.$$uUniversidad de Zaragoza 000118224 700__ $$0(orcid)0000-0002-4746-3139$$aIzquierdo, D.$$uUniversidad de Zaragoza 000118224 700__ $$aMartins, H. F. 000118224 700__ $$aMartín López, S. 000118224 700__ $$aGonzalez Herraez, M. 000118224 700__ $$aFernández Ruiz, M. 000118224 700__ $$aMartínez, J. J. 000118224 7102_ $$12002$$2385$$aUniversidad de Zaragoza$$bDpto. Física Aplicada$$cÁrea Física Aplicada 000118224 773__ $$g34, 13 (2022), 695-698$$pIEEE photonics technol. lett.$$tIEEE Photonics Technology Letters$$x1041-1135 000118224 8564_ $$s1581728$$uhttps://zaguan.unizar.es/record/118224/files/texto_completo.pdf$$yVersión publicada 000118224 8564_ $$s3773987$$uhttps://zaguan.unizar.es/record/118224/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000118224 909CO $$ooai:zaguan.unizar.es:118224$$particulos$$pdriver 000118224 951__ $$a2024-03-18-16:29:22 000118224 980__ $$aARTICLE