Urricelqui Polvorinos, JavierLópez Fernandino, FelipeSagüés García, MikelLoayssa Lara, Alayn2016-11-152016-11-152014Javier Urricelqui ; Felipe López-Fernandino ; Mikel Sagues and Alayn Loayssa "Polarization diversity for Brillouin distributed fiber sensors based on a double orthogonal pump", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91576A (June 2, 2014)0277-786X (Print)1996-756X (Electronic)10.1117/12.2059361https://academica-e.unavarra.es/handle/2454/22691We demonstrate a novel Brillouin optical time domain analysis sensor deploying a polarization diversity technique which eliminates the need for polarization scrambling, providing measurements that are largely immune to the state of polarization of the probe wave and the pump pulses throughout the sensing fiber. This can be exploited to reduce the measurement time or can lead to an enhanced precision. Proof of concept experiments demonstrate a 651 Hz sampling rate with 1m resolution over a 930m sensing fiber.application/pdfengCopyright 2014 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic re-production 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.Brillouin distributed sensorsBrillouin optical time domain analysis (BOTDA)Dynamic BOTDAContribución a congreso / Biltzarrerako ekarpenaAcceso abierto / Sarbide irekiainfo:eu-repo/semantics/openAccess