resumo
This letter presents the Rayleigh backscattering analysis in perfluorinated polymer optical fibers (POFs). In this case, the optical backscattering reflectometry is used on the analysis of the scattering optical signals in the time and frequency domains considering both s- and p-polarizations. The results show the two-way optical attenuation of 17.46 +/- 9.50 dB/m along the fiber length, (of around 0.5 m). Considering the frequency domain analysis, a 4.3% variation on the two-way optical attenuation was obtained, whereas an 8.1% variation is obtained when the s- and p-polarization are analyzed. Then, the perfluorinated POF is applied as a millimeter-scale resolution force sensor, where the optical attenuation and spectral shift are analyzed as a function of the force applied along the POF. The sensor application results indicated the feasibility of using both attenuation and spectral shift on the measurement of force along the optical fiber cable. Therefore, the proposed approach is a suitable method for high resolution sensing.
palavras-chave
SENSORS
categoria
Engineering; Optics; Physics
autores
Leal, A Jr; Silveira, M; Marques, C
nossos autores
Carlos Marques
Professor AuxiliarProjectos
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
agradecimentos
This work was supported in part by Fundacao de Apoio a Pesquisa do Espirito Santo (FAPES) under Grant 1004/2022 and Grant 629/2022; in part by the National Council for Scientific and Technological Development (CNPq) under Grant 440064/2022-8, Grant 310709/2021-0, and Grant 405336/2022-5; in part by Financiadora de Estudos e Projetos (FINEP) under Grant 2784/20, Grant 0036/21, Grant 2132/22, and Grant 0322/23; in part by the scope of the projects Aveiro Institute of Materials (CICECO) financed by national funds through [Portuguese Science and Technology Foundation/Ministerio da Ciencia, Tecnologia e Ensino Superior (MCTES) (Fundacao para a ciencia e a tecnologia (FCT) I.P.)] under Grant LA/P/0006/2020, Grant UIDB/50011/2020, and Grant UIDP/50011/2020; and in part by European Union under the REFRESH-Research Excellence For REgion Sustainability and High-tech Industries via the Operational Programme Just Transition under Project CZ.10.03.01/00/22_003/0000048. (Corresponding author:Arnaldo Leal- Junior.)