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 ...
Show more >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