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- Title
Suppression of photo-darkening effect by Ca additive in Yb-doped silica glass fibre.
- Authors
Sugiyama, S.; Fujimoto, Y.; Murakami, M.; Nakano, H.; Sato, T.; Shiraga, H.
- Abstract
It is found that Ca additive effectively suppresses the photo-darkening effect in Yb-doped silica fibre even at 6.0 wt% of high Yb2O3 concentration. Ca ion works as a stabiliser to maintain the Yb3+ valence state. It is hypothesised that this phenomenon may reflect the local charge balance effect in silica glass. This Yb-Ca co-doped silica fibre can be useful for high-power fibre lasers.
- Subjects
SILICON compounds; ELECTRON glasses; PHOTODARKENING (Optics); SILICA; VALENCE (Chemistry); DOPING agents (Chemistry)
- Publication
Electronics Letters (Wiley-Blackwell), 2013, Vol 49, Issue 2, p89
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2012.4267