Amplification and Lasing Characteristics of Tb3+-doped Fluoride Fiber in the 0.54 µm Band
Amplification and Lasing Characteristics of Tb3+-doped Fluoride Fiber in the 0.54 µm Band
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DOI：
10.1143/jjap.46.l991
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发表时间：
2007-10
影响因子：
1.5
通讯作者：
T. Yamashita;Y. Ohishi
中科院分区：
文献类型：
--
作者：
T. Yamashita;Y. Ohishi
研究了488 nm双向泵浦下0.54 μm波段掺Tb 3+氟化物光纤（TBDF）的放大和激光性能。本文从速率方程出发，分析了Tb ~（3+）~ 5D_4 → ~ 7 F_5跃迁的增益特性。结果表明，泵浦光的激发态吸收主导了TBDF的增益特性，并且对于具有双向泵浦的单级联和双级联TBDF放大器，分别成功地获得了8.3和15.5 dB的改进增益。此外，我们已经证明了连续激光操作在542.8 nm的TBDF激光器的第一次。
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 5D4→7F5 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.