Publication:
Phase-shift based BOTDA measurements tolerant to non-local effects

Consultable a partir de

Date

2013

Director

Publisher

SPIE
Acceso abierto / Sarbide irekia
Contribución a congreso / Biltzarrerako ekarpena
Versión aceptada / Onetsi den bertsioa

Project identifier

MICINN//TEC2010-20224-C02-01/ES/

Abstract

We demonstrate a BOTDA sensor based on the use of the Brillouin phase shift that performs measurements tolerant to non local effects. This technique raises opportunities to increase the distance covered by these sensors and the maximum optical power of the probe wave injected to the fiber. As a result, the system has the potential to increase the SNR achieved at the last meters of the fiber. Proof-of-concept experiments demonstrate unaltered measurements of the phase shift spectrum in a 20Km long fiber for large frequency-dependent distortions of the pump pulse.

Keywords

Stimulated Brillouin scattering, Non local effects, Distributed fiber sensors, Brillouin phase shift, BOTDA, Nonlinear optics

Department

Ingeniería Eléctrica y Electrónica / Ingeniaritza Elektrikoa eta Elektronikoa

Faculty/School

Degree

Doctorate program

Editor version

Funding entities

The authors wish to acknowledge financial support from the Spanish Ministerio de Educación y Ciencia through the project TEC2010-20224-C02-01 and from the Universidad Pública de Navarra.

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