@article{4c48d4ed84614c6681b1daee1869d1f3,
title = "Fiber Bragg Grating (FBG) sensors in a high-scattering optical fiber doped with MgO nanoparticles for polarization-dependent temperature sensing",
abstract = "The characterization of Fiber Bragg Grating (FBG) sensors on a high-scattering fiber, having the core doped with MgO nanoparticles for polarization-dependent temperature sensing is reported. The fiber has a scattering level 37.2 dB higher than a single-mode fiber. FBGs have been inscribed by mean of a near-infrared femtosecond laser and a phase mask, with Bragg wavelength around 1552 nm. The characterization shows a thermal sensitivity of 11.45 pm/°C. A polarization-selective thermal behavior has been obtained, with sensitivity of 11.53 pm/°C for the perpendicular polarization (S) and 11.08 pm/°C for the parallel polarization (P), thus having 4.0% different sensitivity between the two polarizations. The results show the inscription of high-reflectivity FBGs onto a fiber core doped with nanoparticles, with the possibility of having reflectors into a fiber with tailored Rayleigh scattering properties.",
keywords = "Enhanced backscattering fiber, FBG sensor, Fiber Bragg Grating (FBG), Polarization-sensitive device, Rayleigh scattering",
author = "Carlo Molardi and Tiago Paix{\~a}o and Aidana Beisenova and Rui Min and Paulo Antunes and Carlos Marques and Wilfried Blanc and Daniele Tosi",
note = "Funding Information: Funding: This work has been funded by: ORAU program at Nazarbayev University through grants LIFESTART (PI: Daniele Tosi) and FOSTHER (PI: Carlo Molardi); ANR project NanoSlim (ANR-17-17-CE08-0002); FCT – Funda{\c c}{\~a}o para a Ci{\^e}ncia e a Tecnologia, I.P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19, and when applicable co-funded by FEDER—PT2020 partnership agreement under the project UID/CTM/50025/2019. Tiago Paix{\~a}o was funded by Funda{\c c}{\~a}o para a Ci{\^e}ncia e Tecnologia (FCT) for the grant with the references PD/BD/128265/2016. Funding Information: This work has been funded by: ORAU program at Nazarbayev University through grants LIFESTART (PI: Daniele Tosi) and FOSTHER (PI: Carlo Molardi); ANR project NanoSlim (ANR-17-17-CE08-0002); FCT-Funda??o para a Ci?ncia e a Tecnologia, I.P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19, and when applicable co-funded by FEDER-PT2020 partnership agreement under the project UID/CTM/50025/2019. Tiago Paix?o was funded by Funda??o para a Ci?ncia e Tecnologia (FCT) for the grant with the references PD/BD/128265/2016. Publisher Copyright: {\textcopyright} 2019 by the authors.",
year = "2019",
month = aug,
day = "1",
doi = "10.3390/app9153107",
language = "English",
volume = "9",
journal = "Applied Sciences (Switzerland)",
issn = "2076-3417",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "15",
}