We found that Ca additive effectively suppresses the photo-darkening effect in Yb-doped silica fiber even at 6.0 wt% of high Yb2O3 concentration. Ca ion works as a stabilizer to maintain the Yb3+ valence state.
© 2013 OSA
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2290) Fiber optics and optical communications : Fiber materials
(060.3510) Fiber optics and optical communications : Lasers, fiber
Y. Fujimoto, S. Sugiyama, M. Murakami, H. Nakano, T. Sato, and H. Shiraga, "Suppression mechanism by Ca additive of photo-darkening effect in Yb-doped silica glass fiber," in CLEO: 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper CM4I.6.
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