Piñeiro Ben, EnriqueSagüés García, MikelMompó Roselló, Juan JoséEyal, AvishayLoayssa Lara, Alayn2023-09-072023-09-072020Piñeiro, E., Sagues, M., Mompó, J. J., Eyal, A., Loayssa, A. (2020) Distributed strain sensing with large dynamic range based on two-wavelength phase-sensitive OTDR. En Cranch, G. A., Wang, A., Digonnet, M., Dragic P. (Eds.), Optical Fiber Sensors Conference 2020 Special Edition (pp. 1). Optica Publishing Group. https://doi.org/10.1364/OFS.2020.T3.48.978-1-55752-307-510.1364/OFS.2020.T3.48https://academica-e.unavarra.es/handle/2454/46245We demonstrate the use of two-wavelengths to enhance the dynamic range in phase-sensitive OTDR vibration sensors. The system overcomes the phase wrapping con- strains by the synthesis of an equivalent wavelength measurement.application/pdfeng© 2020 Optica Publishing Group. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.Phase-sensitive optical time-domain reflectometryContribución a congreso / Biltzarrerako ekarpena2023-09-07Acceso abierto / Sarbide irekiainfo:eu-repo/semantics/openAccess