[28a-B3-1~10] 5.4 Optical fiber

[28a-B3-3] Suppression of photo-darkening effect by Ca additive in Yb-doped silica glass fiber

^○Yasushi Fujimoto¹, Sei-ichi Sugiyama², Motoichiro Murakami¹, Hitoshi Nakano², Tatsuhiro Sato³, Hiroyuki Shiraga¹ (ILE Osaka Univ.¹, Kinki Univ.², Shin-Etsu Quartz Products Co., Ltd.³)

Keywords:シリカファイバ、Photo-darkening、高出力ファイバレーザー