Journal article 801 views
Defects induced in Yb3+/Ce3+ co-doped aluminosilicate fiber glass preforms under UV and γ-ray irradiation
Mario Chiesa,
Kent Mattsson,
Stefano Taccheo 
,
Thierry Robin,
Laurent Lablonde,
David Mechin,
Daniel Milanese
,
Thierry Robin,
Laurent Lablonde,
David Mechin,
Daniel Milanese
Journal of Non-Crystalline Solids, Volume: 403, Pages: 97 - 101
Swansea University Author:
Stefano Taccheo
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DOI (Published version): 10.1016/j.jnoncrysol.2014.07.011
Abstract
A set of Ce-/Yb-co-doped silica optical fiber preform cores, differing in terms of dopant concentrations are studied by Electron Paramagnetic Resonance (EPR) spectroscopy before and after irradiation of the samples with excimer UV laser light and γ-rays. Evidence of Yb3 + clustering in the case of h...
| Published in: | Journal of Non-Crystalline Solids |
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| ISSN: | 0022-3093 |
| Published: |
2014
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa21337 |
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| Abstract: |
A set of Ce-/Yb-co-doped silica optical fiber preform cores, differing in terms of dopant concentrations are studied by Electron Paramagnetic Resonance (EPR) spectroscopy before and after irradiation of the samples with excimer UV laser light and γ-rays. Evidence of Yb3 + clustering in the case of high Yb content samples is observed on as prepared samples regardless of the presence of Ce3 + ions. Si-E′ and Al-OHC centers were identified upon photon irradiation. The results are correlated to the micro-structural origin of the photodarkening process occurring in Ce–Yb doped glass fibers. |
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| College: |
Faculty of Science and Engineering |
| Start Page: |
97 |
| End Page: |
101 |