Share Email Print
cover

Proceedings Paper

Simultaneous gain and phase profile determination on an interferometric BOTDA
Author(s): X. Angulo-Vinuesa; A. Lopez-Gil; A. Dominguez-López; J. L. Cruz; M. V. Andres; S. Martin-Lopez; M. Gonzalez-Herraez
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Up to now, complex (phase and intensity) measurements in Brillouin Optical Time-Domain Analysis (BOTDA) systems required complex phase modulation methods and high-bandwidth (multi-GHz) detection. In this work, we propose a novel technique that is able to retrieve simultaneously both gain/loss and phase characteristics of the Brillouin interaction by just introducing a Sagnac Interferometer (SI) on a standard BOTDA sensing scheme. The technique is described analytically and demonstrated experimentally. With this technique, a reliability increase is produced since redundant measurements can be performed.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963419 (28 September 2015); doi: 10.1117/12.2192663
Show Author Affiliations
X. Angulo-Vinuesa, Univ. de Alcalá (Spain)
A. Lopez-Gil, Univ. de Alcalá (Spain)
A. Dominguez-López, Univ. de Alcalá (Spain)
J. L. Cruz, Univ. de València (Spain)
M. V. Andres, Univ. de València (Spain)
S. Martin-Lopez, Univ. de Alcalá (Spain)
M. Gonzalez-Herraez, Univ. de Alcalá (Spain)


Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

© SPIE. Terms of Use
Back to Top