Publication:
Spectral shadowing suppression technique in phase-OTDR sensing based on weak fiber Bragg grating array

Date

2019

Authors

Jason, Johan
Kurtoglu, Deniz
Wuilpart, Marc

Director

Publisher

Optical Society of America
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión aceptada / Onetsi den bertsioa

Project identifier

ES/1PE/TEC2016-76021
Impacto

Abstract

A postprocessing procedure is presented to suppress spectral shadowing in phase-OTDR sensing systems based on a weak fiber Bragg grating array. A complete theoretical analysis of the interfering signals has been carried out to identify a compensation method. The proposed approach has been applied to simulated and experimental phase-OTDR in the context of vibration measurements. Fast Fourier transform has been employed to analyze the obtained results, which has verified the validity of the proposed method to suppress spectral shadowing.

Description

Keywords

Effective refractive index, Fiber Bragg gratings, Optical time domain reflectometry, Reflection coefficient, Refractive index, Transmission coefficient

Department

Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren / Institute of Smart Cities - ISC / Ingeniería Eléctrica, Electrónica y de Comunicación

Faculty/School

Degree

Doctorate program

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