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Proceedings Paper

Self-heterodyne synchronous detection for SNR improvement and distributed Brillouin phase shift measurements in BOTDA sensors
Author(s): Ander Zornoza; David Olier; Alayn Loayssa
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Paper Abstract

We present a Brillouin optical time domain analysis (BOTDA) sensor that takes advantage of the enhanced characteristics obtained employing self-heterodyne optical detection combined with synchronous RF demodulation to increase the sensibility of the sensor and minimize non-local effects. We also perform for the first time to our knowledge distributed measurements of the Brillouin phase shift in an optical fiber.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77532F (17 May 2011); doi: 10.1117/12.886040
Show Author Affiliations
Ander Zornoza, Univ. Pública de Navarra (Spain)
David Olier, Univ. Pública de Navarra (Spain)
Alayn Loayssa, Univ. Pública de Navarra (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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