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中文摘要：
掺镱氟化钙（Yb^3＋：CaF2）激光器是最近国际上研究的热点之一，2008年报道的该类激光器，在64W激光二极管（LD）的抽运下，实现了平均输出功率10．2W的连续激光输出。利用国产镱钠共掺的氟化钙（Yb，Na：CaF2）激光晶体，采用三镜折叠腔型和激光二极管抽运，获得了该类激光器（Yb，Na：CaF2／Yb：CaF2）的高功率连续输出。实验参数为：输出耦合镜的透过率为4％，激光二极管的最大输出功率为40W，中心波长为976nm。当吸收抽运功率18．2W时，获得了14．5W的最高功率连续激光输出，相应的斜率效率为80％。结果表明，国产Yb，Na：CaF2晶体具有低激光阈值和高负载能力，是一种优良的高功率激光材料。
英文摘要：
Yb^3＋ ：CaF2 laser has been intensively explored in recent years. In Yb^3＋ ：CaF2 continuous-wave （CW） laser, the highest output power of 10.2 W pumped by a laser diode（LD） of 64 W has been reported in 2008. The first demonstration of the highest output power of 14.5 W in a LD-pumped Yb, Na： CaF2 CW laser is presented, under the conditions of an absorbed pump power of 18.2 W and a output coupler of 4%, which corresponds to a laser slope efficiency of 80%. The result shows that the novel Yb, Na： CaF2 crystal is an excellent laser material for lowthreshold and high-power lasers.
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