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Effect of Low-Doses of Gamma Radiation on Electric Arc-Induced Long Period Fiber Gratings

This work presents an experimental study on the effects of gamma radiation on Long Period Fiber Gratings (LPFGs) in a low-dose test campaign to evaluate their eventual degradation. The study was carried out with standard single-mode fibers where the grating was inscribed using the Electric-Arc Disch...

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Autores principales: Mesonero-Santos, Patricia, Fernández-Medina, Ana, Coelho, Luis C. C., Viveiros, Duarte, Jorge, Pedro A., Belenguer, Tomás, López Heredero, Raquel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8036464/
https://www.ncbi.nlm.nih.gov/pubmed/33810375
http://dx.doi.org/10.3390/s21072318
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author Mesonero-Santos, Patricia
Fernández-Medina, Ana
Coelho, Luis C. C.
Viveiros, Duarte
Jorge, Pedro A.
Belenguer, Tomás
López Heredero, Raquel
author_facet Mesonero-Santos, Patricia
Fernández-Medina, Ana
Coelho, Luis C. C.
Viveiros, Duarte
Jorge, Pedro A.
Belenguer, Tomás
López Heredero, Raquel
author_sort Mesonero-Santos, Patricia
collection PubMed
description This work presents an experimental study on the effects of gamma radiation on Long Period Fiber Gratings (LPFGs) in a low-dose test campaign to evaluate their eventual degradation. The study was carried out with standard single-mode fibers where the grating was inscribed using the Electric-Arc Discharge (EAD) technique. Before the gamma campaign, a detailed optical characterization was performed with repeatability tests to verify the accuracy of the setup and the associated error sources. The gamma-induced changes up to a dose of 200 krad and the recovery after radiation were monitored with the Dip Wavelength Shift (DWS). The results show that the gamma sensitivity for a total dose of 200 krad is 11 pm/krad and a total DWS of 2.3 nm has been observed with no linear dependence. Post-radiation study shows that recovery from radiation-induced wavelength shift is nearly complete in about 4000 h. Experimental results show that the changes suffered under gamma irradiation of these LPFGs are temporary making them a good choice as sensors in space applications.
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spelling pubmed-80364642021-04-12 Effect of Low-Doses of Gamma Radiation on Electric Arc-Induced Long Period Fiber Gratings Mesonero-Santos, Patricia Fernández-Medina, Ana Coelho, Luis C. C. Viveiros, Duarte Jorge, Pedro A. Belenguer, Tomás López Heredero, Raquel Sensors (Basel) Article This work presents an experimental study on the effects of gamma radiation on Long Period Fiber Gratings (LPFGs) in a low-dose test campaign to evaluate their eventual degradation. The study was carried out with standard single-mode fibers where the grating was inscribed using the Electric-Arc Discharge (EAD) technique. Before the gamma campaign, a detailed optical characterization was performed with repeatability tests to verify the accuracy of the setup and the associated error sources. The gamma-induced changes up to a dose of 200 krad and the recovery after radiation were monitored with the Dip Wavelength Shift (DWS). The results show that the gamma sensitivity for a total dose of 200 krad is 11 pm/krad and a total DWS of 2.3 nm has been observed with no linear dependence. Post-radiation study shows that recovery from radiation-induced wavelength shift is nearly complete in about 4000 h. Experimental results show that the changes suffered under gamma irradiation of these LPFGs are temporary making them a good choice as sensors in space applications. MDPI 2021-03-26 /pmc/articles/PMC8036464/ /pubmed/33810375 http://dx.doi.org/10.3390/s21072318 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Mesonero-Santos, Patricia
Fernández-Medina, Ana
Coelho, Luis C. C.
Viveiros, Duarte
Jorge, Pedro A.
Belenguer, Tomás
López Heredero, Raquel
Effect of Low-Doses of Gamma Radiation on Electric Arc-Induced Long Period Fiber Gratings
title Effect of Low-Doses of Gamma Radiation on Electric Arc-Induced Long Period Fiber Gratings
title_full Effect of Low-Doses of Gamma Radiation on Electric Arc-Induced Long Period Fiber Gratings
title_fullStr Effect of Low-Doses of Gamma Radiation on Electric Arc-Induced Long Period Fiber Gratings
title_full_unstemmed Effect of Low-Doses of Gamma Radiation on Electric Arc-Induced Long Period Fiber Gratings
title_short Effect of Low-Doses of Gamma Radiation on Electric Arc-Induced Long Period Fiber Gratings
title_sort effect of low-doses of gamma radiation on electric arc-induced long period fiber gratings
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8036464/
https://www.ncbi.nlm.nih.gov/pubmed/33810375
http://dx.doi.org/10.3390/s21072318
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