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Radiation hardening of sol gel-derived ...
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Document type :
Article dans une revue scientifique
DOI :
10.1364/AO.55.007455
Title :
Radiation hardening of sol gel-derived silica fiber preforms through fictive temperature reduction
Author(s) :
Babu, B. Hari [Auteur]
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
Lancry, Matthieu [Auteur]
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
Ollier, Nadege [Auteur]
Laboratoire des Solides Irradiés [LSI]
Hamzaoui, Hicham El [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Bouazaoui, Mohamed [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Bertrand, Poumellec [Auteur]
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
Journal title :
Journal Optical Society of America Applied Optics
Pages :
7455
Publication date :
2016-09-20
HAL domain(s) :
Physique [physics]
English abstract : [en]
The impact of fictive temperature (T f ) on the evolution of point defects and optical attenuation in non-dopedand Er3-doped sol-gel silica glasses was studied and compared to Suprasil F300 and Infrasil 301 glasses beforeand ...
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The impact of fictive temperature (T f ) on the evolution of point defects and optical attenuation in non-dopedand Er3-doped sol-gel silica glasses was studied and compared to Suprasil F300 and Infrasil 301 glasses beforeand after γ-irradiation. To this aim, sol-gel optical fiber preforms have been fabricated by the densification oferbium salt-soaked nanoporous silica xerogels through the polymeric sol-gel technique. These γ-irradiated fiberpreforms have been characterized by FTIR, UV-vis-NIR absorption spectroscopy, electron paramagnetic resonance,and photoluminescence measurements. We showed that a decrease in the glass fictive temperature leadsto a decrease in the glass disorder and strained bonds. This mainly results in a lower defect generation rate andthus less radiation-induced attenuation in the UV–vis range. Furthermore, it was found that γ-radiation “hardness”is higher in Er3+-doped sol-gel silica compared to un-doped sol-gel silica and standard synthetic silicaglasses. The present work demonstrates an effective strategy to improve the radiation resistance of optical fiberpreforms and glasses through glass fictive temperature reductionShow less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
ANR Project :
NANOstructuration de matériaux destinés à la réalisation d'une nouvelle génération de FIBres optiques amplificatrices dopées Erbium and Erbium/Ytterbium (NANOFIBER)
Collections :
  • Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523
Source :
Harvested from HAL
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