DocumentCode :
28017
Title :
Suppression of photo-darkening effect by Ca additive in Yb-doped silica glass fibre
Author :
Sugiyama, Shunsuke ; Fujimoto, Yasutaka ; Murakami, M. ; Nakano, Hisamatsu ; Sato, Takao ; Shiraga, H.
Author_Institution :
Fac. of Sci. & Eng., Kinki Univ., Higashiosaka, Japan
Volume :
49
Issue :
2
fYear :
2013
fDate :
January 17 2013
Firstpage :
148
Lastpage :
149
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.
Keywords :
calcium; optical fibres; optical glass; photochromism; silicon compounds; ytterbium; SiO2:Yb,Ca; glass fibre; high power fibre laser; local charge balance effect; photodarkening effect suppression; valence state;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el.2012.4267
Filename :
6420105
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=28017
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