1. Radiation and High Temperature Effects on Regenerated Fiber Bragg Grating
- Author
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Thomas Blanchet, Youcef Ouerdane, Aziz Boukenter, Adriana Morana, Rudy Desmarchelier, Emmanuel Marin, Guillaume Laffont, Sylvain Girard, Laboratoire Capteurs Fibres Optiques (LCFO), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Hubert Curien [Saint Etienne] (LHC), Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Laboratoire Hubert Curien (LHC), and Institut d'Optique Graduate School (IOGS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
regenerated FBG ,radiation induced-BWS ,regenerated fiber Bragg grating ,Analytical chemistry ,Radiation effects ,02 engineering and technology ,irradiation parameters ,01 natural sciences ,7. Clean energy ,relatively radiation tolerant ,020210 optoelectronics & photonics ,KrF ,Fiber Bragg grating ,prethermal treatment ,0202 electrical engineering, electronic engineering, information engineering ,Fiber Bragg gratings ,Fiber ,prehydrogenated Ge-doped fiber ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,Bragg gratings ,optical fibre sensors ,Atomic and Molecular Physics, and Optics ,Total dose ,SiO2 ,optical fibre fabrication ,silicon compounds ,RFBG response ,preirradiation ,Materials science ,Radiation ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,Temperature measurement ,UV laser ,Fiber laser ,dose rate ,0103 physical sciences ,X-rays ,Temperature sensors ,irradiation temperatures ,Irradiation ,harsh environments ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,gamma-ray effects ,Diffraction grating ,010308 nuclear & particles physics ,optical fibre testing ,radiation ,germanium ,13. Climate action ,regeneration ,Bragg wavelength shift ,[PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph] ,high temperature effects ,nuclear reactor cores ,radiation constraints - Abstract
International audience; Fiber Bragg gratings (FBGs) are promising sensors for operation in harsh environments mixing temperature and radiation constraints. Regenerated FBGs (RFBGs) are suited to perform measurements at very high temperatures (up to 1295 °C) as those encountered in nuclear reactor cores. However, only a few studies have been done regarding combined effects of radiations and temperature on RFBGs. We studied the response of such gratings under X-rays at several irradiation temperatures from 25 °C to 250 °C. Tested RFBGs have been inscribed on a pre-hydrogenated Ge-doped fiber with UV laser (KrF) using a phase mask and the regeneration has been done at 750 °C. Our results show that RFBGs are relatively radiation tolerant at 25 °C with a Bragg wavelength shift (BWS) of less than 50 pm (~5 °C error) for a total dose of 100 kGy(SiO 2 ). However, at increased irradiation temperatures (>150 °C), the BWS is limited, remaining below 10 pm (
- Published
- 2019