000151214 001__ 151214 000151214 005__ 20251017144635.0 000151214 0247_ $$2doi$$a10.1109/CLEOE-EQEC.2019.8873244 000151214 0248_ $$2sideral$$a134153 000151214 037__ $$aART-2019-134153 000151214 041__ $$aeng 000151214 100__ $$0(orcid)0000-0002-2660-5652$$aSanahuja, D.$$uUniversidad de Zaragoza 000151214 245__ $$aNovel DAS Extension System Based on Pulse Regeneration 000151214 260__ $$c2019 000151214 5203_ $$aIn this work, results from the regeneration of the interferometrie response obtained with a long-range Distributed Acoustic Sensor (DAS) [1] system are presented. These measurements demonstrate the ability of a patent pending prototype of a DAS signal regenerating system which succeeds to restore measurement conditions far away from the low-SNR limit point, improving the range of the system without impairing the performance and capabilities of the DAS set-up. Successive regeneration stages allow the intensity of the probe pulses to be maintained below the Modulation Instability (IM) [2] threshold along the full length of the sensing fiber. Results show how interferometric trace is completely recovered after every regeneration module maintaining this way the quality of the sensing signals throughout the next fiber span. Each of these regenerators contains a detection chain, resulting in a discrete lumped amplification-detection architecture. 000151214 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000151214 655_4 $$ainfo:eu-repo/semantics/conferenceObject$$vinfo:eu-repo/semantics/publishedVersion 000151214 700__ $$0(orcid)0000-0001-5898-8777$$aPreciado, J. 000151214 700__ $$0(orcid)0000-0002-2244-170X$$aSubias, J.$$uUniversidad de Zaragoza 000151214 700__ $$0(orcid)0000-0001-5608-8679$$aHeras, C. D.$$uUniversidad de Zaragoza 000151214 700__ $$0(orcid)0000-0002-4094-3826$$aSevillano, P.$$uUniversidad de Zaragoza 000151214 700__ $$aMartinez, J. J. 000151214 700__ $$aVillafranca, A. 000151214 7102_ $$12002$$2385$$aUniversidad de Zaragoza$$bDpto. Física Aplicada$$cÁrea Física Aplicada 000151214 7102_ $$15008$$2800$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Teoría Señal y Comunicac. 000151214 773__ $$g2019 (2019), [1 pp.]$$pConf. Lasers Electro-Opt. Eur. Int. Quantum Electron. Conf.$$tConference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference$$x2639-5452 000151214 8564_ $$s293511$$uhttps://zaguan.unizar.es/record/151214/files/texto_completo.pdf$$yVersión publicada 000151214 8564_ $$s2745539$$uhttps://zaguan.unizar.es/record/151214/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000151214 909CO $$ooai:zaguan.unizar.es:151214$$particulos$$pdriver 000151214 951__ $$a2025-10-17-14:29:03 000151214 980__ $$aARTICLE