151214 20251017144635.0 doi 10.1109/CLEOE-EQEC.2019.8873244 sideral 134153 ART-2019-134153 eng Sanahuja, D. Universidad de Zaragoza (orcid)0000-0002-2660-5652 Novel DAS Extension System Based on Pulse Regeneration 2019 In 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. info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion Preciado, J. (orcid)0000-0001-5898-8777 Subias, J. Universidad de Zaragoza (orcid)0000-0002-2244-170X Heras, C. D. Universidad de Zaragoza (orcid)0000-0001-5608-8679 Sevillano, P. Universidad de Zaragoza (orcid)0000-0002-4094-3826 Martinez, J. J. Villafranca, A. 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 5008 800 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Teoría Señal y Comunicac. 2019 (2019), [1 pp.] Conf. Lasers Electro-Opt. Eur. Int. Quantum Electron. Conf. Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference 2639-5452 293511 http://zaguan.unizar.es/record/151214/files/texto_completo.pdf Versión publicada 2745539 http://zaguan.unizar.es/record/151214/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:151214 articulos driver 2025-10-17-14:29:03 ARTICLE