Overcoming non-local effects and Brillouin threshold limitations in Brillouin distributed sensors

Date

2015

Authors

Ruiz Lombera, Rubén
Mirapeix, Jesús
López Higuera, José Miguel

Director

Publisher

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

Project identifier

Impacto
No disponible en Scopus

Abstract

We demonstrate, for the first time to our knowledge, a Brillouin optical time domain analysis sensor that is able to operate with a probe power larger than the Brillouin threshold of the deployed sensing fiber and that is free from detrimental non-local effects. The technique is based on a dual-probe-sideband setup in which a frequency modulation of the probes waves along the fiber is introduced. This makes the frequency of maximum interaction between pump and probes to vary along the fiber, thus mitigating the pump pulse depletion and making it possible to use very large probe power, which brings an improved signal-to-noise ratio in detection.

Description

Keywords

Brillouin distributed sensors, Brillouin optical time domain analysis, Brillouin threshold

Department

Ingeniería Eléctrica y Electrónica / Ingeniaritza Elektrikoa eta Elektronikoa

Faculty/School

Degree

Doctorate program

item.page.cita

Javier Urricelqui ; Rubén Ruiz-Lombera ; Mikel Sagues ; Jesús Mirapeix ; José M. López-Higuera, et al. "Overcoming non-local effects and Brillouin threshold limitations in Brillouin distributed sensors", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963487 (September 28, 2015)

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