Zornoza Indart, AnderOlier Aguado, DavidSagüés García, MikelLoayssa Lara, Alayn2024-12-162024-12-162009-10-05Zornoza, A., Olier, D., Sagues, M., Loayssa, A. (2009) Distortion-free Brillouin distributed sensor using RF shaping of pump pulses. In Jones J. (Ed.), 20th International Conference on Optical Fibre Sensors (pp. 1-4). SPIE. https://doi.org/10.1117/12.835463.978-0-8194-7814-610.1117/12.835463https://academica-e.unavarra.es/handle/2454/52758We demonstrate a novel configuration for Brillouin optical time domain analysis based on single-sideband modulation and RF shaping that provides pump pulses with 80-dB extinction ratio. This extremely reduced leakage, which to our knowledge is the lowest ever achieved, completely suppresses distortion of the measured spectra, thus sensor precision is enhanced. Furthermore, the proposed setup results in a simplified system with only one modulator and no need for optical filtering in detection.application/pdfeng© 2009 Society of Photo Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, or modification of the contents of the publication are prohibited.Brillouin fibre sensingDistributed fibre sensorStimulated Brillouin scatteringBOTDAinfo:eu-repo/semantics/conferenceObject2024-12-16info:eu-repo/semantics/openAccess