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Proceedings Paper

30cm of spatial resolution using pre-excitation pulse BOTDA technique
Author(s): C. A. Galindez; A. Quintela; M. A. Quintela; J. M. Lopez-Higuera
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Paper 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.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77532H (17 May 2011); doi: 10.1117/12.884996
Show Author Affiliations
C. A. Galindez, Univ. de Cantabria (Spain)
A. Quintela, Univ. de Cantabria (Spain)
M. A. Quintela, Univ. de Cantabria (Spain)
J. M. Lopez-Higuera, Univ. de Cantabria (Spain)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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