Publication:
Ring cavity erbium-doped fiber for refractive index measurements

Consultable a partir de

Date

2022

Authors

Soares, Liliana
Silva, Susana
Frazão, Orlando

Director

Publisher

MDPI
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión publicada / Argitaratu den bertsioa

Project identifier

AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107270RB-C22/ES/
AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PDC2021-121172-C21
AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/TED2021-130378B-C22

Abstract

In this study, an interrogation system based on an erbium-doped fiber ring cavity for refractive index measurements is presented and experimentally demonstrated. This cavity ring includes a 1 × 3 coupler wherein one of the fiber output ports is used to increase the optical power of the system by means of an FBG used as a reflector. The other two output ports are used as a refractive index sensing head and reference port, respectively. An experimental demonstration of this proposed sensor system for the measurement of a distinct refractive index is presented.

Keywords

Amplified spontaneous emission, Erbium-doped fiber, Refractive index measurements

Department

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

Faculty/School

Degree

Doctorate program

Editor version

Funding entities

This work is financed by the program “José Castillejo para estancias de movilidad en el extranjero de jóvenes doctores”, funded by the Ministerio de Universidades of Spain (reference CAS21/00351); project PID2019-107270RB-C22, funded by MCIN/AEI/10.13039/501100011033 and FEDER “A way to make Europe”; projects PDC2021-121172-C21 and TED2021-130378B-C22 funded by MCIN/AEI/10.13039/501100011033 and European Union “Next generation EU”/PTR; and National Funds through the Portuguese funding agency, FCT—Fundação para a Ciência e a Tecnologia, within project UIDB/50014/2020. Liliana Soares acknowledges the support of FCT, Portugal through the Grant 2020.05297.BD.

© 2022 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.

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