Effects of Lanthanum and Boron Addition on Suppression of Cooperative Upconversion in Bismuth Oxide-Based Erbium-Doped Fibers
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概要
- 論文の詳細を見る
Analyses of cooperative upconversion were performed for two kinds of bismuth oxide-based erbium-doped fibers (BIEDFs) with and without lanthanum (La) and boron (B). The pump energy dependences of the fluorescence lifetimes of Er3+: 1.55 μm lateral emissions were investigated to estimate cooperative upconversion (CUP) coefficients. The CUP coefficients increased with Er concentrations in all the BIEDFs, whereas the coefficients in the La/B co-doped BIEDFs were smaller than those in the La/B-free BIEDFs. It is strongly suggested that the gain improvement in La/B co-doped BIEDFs is attributed to the suppression of CUP.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-06-15
著者
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Sugimoto Naoki
Research Center Asahi Glass Co. Ltd.
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Ohara Seiki
Research Center Asahi Glass Co. Ltd.
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HAYASHI Hideaki
Research Center, Asahi Glass Co., Ltd.
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Tanabe Setsuhisa
Graduate School Of Human And Environmental Studies Kyoto Univ.
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Ohara Seiki
Research Center, Asahi Glass Co., Ltd., Yokohama 221-8755, Japan
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Hayashi Hideaki
Research Center, Asahi Glass Co., Ltd, 1150 Hazawa-cho, Yokohama 221-8755, Japan
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