Diode-pumped 1.7-W erbium 3-μm fiber laser
Diode-pumped 1.7-W erbium 3-μm fiber laser
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DOI：
10.1364/ol.24.001133
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发表时间：
1999-08-15
期刊：
影响因子：
3.6
通讯作者：
Pollnau, M
中科院分区：
文献类型：
--
作者：
Jackson, SD;King, TA;Pollnau, M
我们报道了据我们所知的第一个1-W级的3微米光纤激光器。在790 nm泵浦的双包层掺铒ZBLAN光纤二极管上，获得了1.7W的输出功率和17.3%的斜率效率(相对于泵浦功率)。从Er3+低激光能级到Pr3+共掺杂剂的能量转移减少了基态漂白和激发态吸收，从而避免了输出功率饱和。这一结果比我们所知道的以前的工作有了更大的改进。与当前的晶体激光器设计相比，其优点包括近乎横向基模工作、减少热效应以及易于使用，例如在医疗内窥镜检查中。(C)1999年美国光学学会。
We report what is to our knowledge the first 3-mu m fiber laser of the 1-W class. 1.7 W of output power and 17.3% slope efficiency (with respect to the launched pump power) at a wavelength of 2.71 mu m are demonstrated from a double-clad erbium-doped ZBLAN fiber diode pumped at 790 nm. Energy transfer from the Er3+ lower laser level to a Pr3+ codopant decreases ground-state bleaching and excited-state absorption, thus avoiding output-power saturation. This result represents more than an order-of-magnitude improvement over previous work of which we are aware. Advantages over current crystal-laser designs include nearly transverse-fundamental-mode operation, reduced thermal effects, and ease of use, e.g., in medical endoscopy. (C) 1999 Optical Society of America.