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30cm of spatial resolution using pre-excitation pulse BOTDA technique

Abstract: A pre-excitation pulse technique in Brillouin optical time domain analysis (PP-BOTDA) for enhancement of the spatial resolution is shown. The technique here exposed is based on the pre-excitation of the stimulated Brillouin scattering and the subtraction of the Brillouin scattering due to the intensity dc level present in the optical pulse. A main optical pulse with 3ns of duration followed by a pulse of 40ns and half the intensity of the main one are used for obtaining 30cm of spatial resolution. The spatial range is 3600m on a standard single mode optical fiber.

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 Autoría: Galindez C., Quintela A., Quintela M., Lopez-Higuera J.,

 Congreso: International Conference on Optical Fiber Sensors: OFS (21ª : 2011 : Ottawa, Canadá))

 Editorial: SPIE Society of Photo-Optical Instrumentation Engineers

 Fecha de publicación: 17/05/2011

 Nº de páginas: 4

 Tipo de publicación: Comunicación a Congreso

 DOI: 10.1117/12.884996

 ISSN: 0277-786X,1996-756X

 Proyecto español: TEC2007-67987-C02

 Url de la publicación: https://doi.org/10.1117/12.884996