Urricelqui Polvorinos, JavierZornoza Indart, AnderSagüés García, MikelLoayssa Lara, Alayn2016-11-152016-11-152012Javier Urricelqui ; Ander Zornoza ; Mikel Sagues and Alayn Loayssa "Dynamic BOTDA measurements using Brillouin phase-shift", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842125 (October 4, 2012)0277-786X (Print)1996-756X (Electronic)10.1117/12.975011https://academica-e.unavarra.es/handle/2454/22689We demonstrate a novel dynamic BOTDA sensor based, for the first time to our knowledge, on the use of the Brillouin phase-shift instead of the conventional Brillouin gain. This provides the advantage of measurements that are largely immune to variations in fiber attenuation or changes in pump pulse power. Furthermore, the optical detection deployed can lead to an enhanced precision or measurement time and to the broadening of the measurement range. Proof of concept experiments demonstrate 1.66 kHz measurement rate with 1 m resolution over a 160 m sensing fiber length.application/pdfengCopyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.Dynamic distributed measurementsBrillouin phase shiftBOTDAStrain measurementsDistributed fiber sensorinfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccess