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Proceedings Paper

Pump depletion reduction technique for extended-range distributed Brillouin fiber sensors
Author(s): R. Bernini; A. Minardo; L. Zeni
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Paper Abstract

We present a numerical and experimental analysis of a technical solution, capable of alleviating the problem of pump depletion in a long-range Brillouin distributed fiber sensor. This solution takes advantage of the presence of two sidebands in the probe wave to generate a dual gain-loss Brillouin interaction, giving rise to reduced pump depletion. Experimental results, carried out by using both a Brillouin optical frequency-domain analysis (BOFDA) configuration and a Brillouin optical time-domain analysis (BOTDA) configuration, permitted to evaluate the advantages and limitations of the gain-loss technique. An extensive experimental and numerical analysis has been carried out, in order to understand the differences on the effectiveness of the technique, between BOTDA and BOFDA set-ups.

Paper Details

Date Published: 18 May 2009
PDF: 8 pages
Proc. SPIE 7356, Optical Sensors 2009, 73560L (18 May 2009); doi: 10.1117/12.820695
Show Author Affiliations
R. Bernini, IREA, Consiglio Nazionale delle Ricerche (Italy)
A. Minardo, Second Univ. of Naples (Italy)
L. Zeni, Second Univ. of Naples (Italy)

Published in SPIE Proceedings Vol. 7356:
Optical Sensors 2009
Francesco Baldini; Jiri Homola; Robert A. Lieberman, Editor(s)

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