Influence of ambient light on the radiation-induced attenuation of germanosilicate optical fibers in the visible and near-infrared domains

We investigated the influence of the ambient light on the Radiation-Induced Attenuation (RIA) of Ge-doped optical fibers measured at the telecommunication wavelengths when exposed to a 60 Co source, and in the visible and Near-InfraRed (NIR) domains when exposed to X-rays. From our results, it is po...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2023-04, Vol.70 (4), p.1-1
Main Authors: Campanella, Cosimo, Weninger, Luca, Morana, Adriana, Meyer, Arnaud, Mady, Franck, Benabdesselam, Mourad, Desjonqueres, Hortense, Poirier, Stephane, Monsanglant-Louvet, Celine, Marin, Emmanuel, Ouerdane, Youcef, Boukenter, Aziz, Girard, Sylvain
Format: Article
Language:English
Subjects:
Absorption spectra
Ambient light effects
Attenuation
Domains
Doped fibers
Engineering Sciences
Fibers
Ge-doped silica
Germanium
I.R. radiation
Irradiation
Kinetic theory
Lighting
Optical fiber sensors
Optical fibers
Photobleaching
Photochemical reactions
Point defects
Radiation
Radiation effects
Radiation-induced attenuation
Wavelengths
X-rays
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Summary:We investigated the influence of the ambient light on the Radiation-Induced Attenuation (RIA) of Ge-doped optical fibers measured at the telecommunication wavelengths when exposed to a 60 Co source, and in the visible and Near-InfraRed (NIR) domains when exposed to X-rays. From our results, it is possible to observe that this class of optical fibers are sensitive to the ambient light. Indeed, in all cases, their RIA value changes depending on the illumination conditions. In particular, the γ-ray irradiations revealed jumps in the measured RIA when changing the lamp of the irradiation chamber, whereas the X-ray irradiations reported that the relative photobleaching effect caused by the ambient light increases with the wavelength, up to ~1300 nm. The spectral study revealed no direct correlation between the absorption bands of the known Ge-related point defects and the external photobleaching phenomenon.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2022.3228099