A Simple Technique for Reducing Pump Depletion in Long-Range Distributed Brillouin Fiber Sensors

Author

Minardo, Aldo ; Bernini, Romeo ; Zeni, Luigi

Author_Institution

Dept. of Inf. Eng., Second Univ. of Naples, Aversa

Volume

9

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

633

Lastpage

634

Abstract

We present 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 a Brillouin optical frequency-domain analysis configuration, demonstrated the improvement offered by the gain-loss technique.

Keywords

distributed sensors; fibre optic sensors; frequency-domain analysis; optical losses; stimulated Brillouin scattering; BOFDA measurement; Brillouin optical-fiber frequency-domain analysis; gain-loss technique; long-range distributed Brillouin fiber sensor; pump depletion reduction technique; stimulated Brillouin scattering; Brillouin scattering; Frequency; Laser excitation; Optical distortion; Optical fiber sensors; Optical fibers; Optical pumping; Optical scattering; Optical sensors; Probes; Brillouin scattering; optical fiber measurements;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2009.2019372

Filename

4897230