Amplification and Lasing Characteristics of Tb3+-doped Fluoride Fiber in the 0.54 μm Band
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概要
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The amplification and laser performances of a Tb3+-doped fluoride fiber (TBDF) operating in the 0.54 μm band, with 488 nm bi-directional pumping, have been investigated. We have analysed the gain characteristics of the $^{5}D_{4}\rightarrow{}^{7}F_{5}$ transition of Tb3+ based on rate equations. It was clarified that the excited state absorption of the pump light dominates the gain characteristics for a TBDF, and improved gains of 8.3 and 15.5 dB were successfully attained for single and double-cascaded TBDF amplifiers with bi-directional pumping, respectively. In addition, we have demonstrated CW lasing operation at 542.8 nm with a TBDF laser for the first time.
- Japan Society of Applied Physicsの論文
- 2007-11-25
著者
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Ohishi Yasutake
Research Center For Advanced Photon Technology Toyota Technological Institute
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Yamashita Tatsuya
Research Center for Advanced Photon Technology, Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya 468-8511, Japan
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Ohishi Yasutake
Research Center for Advanced Photon Technology, Toyota Technological Institute, Nagoya 468-8511, Japan
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