School of Science, Changchun University of Science and Technology, Changchun 130022, China.
Opt Lett. 2010 Nov 1;35(21):3670-2. doi: 10.1364/OL.35.003670.
We report for the first time (to our knowledge) a diode-pumped Nd:YAG laser emitting at 869 nm based on the (4)F(3/2)-(4)I(9/2) transition, generally used for a 946 nm emission. Power of 453 mW at 869 nm has been achieved in cw operation with a fiber-coupled laser diode emitting 35.4 W at 809 nm. Intracavity second-harmonic generation in the cw mode has also been demonstrated with power of 118 mW at 435 nm by using a BiB(3)O(6) nonlinear crystal. In our experiment, we used a LiNbO(3) crystal lens to complement the thermal lens of the laser rod, and we obtained good beam quality and high output power stability.
我们首次（据我们所知）报告了一种基于 (4)F(3/2)-(4)I(9/2) 跃迁的二极管泵浦 Nd:YAG 激光，该跃迁通常用于产生 946nm 发射。在 809nm 的光纤耦合激光二极管发射 35.4W 的连续波操作下，实现了 453mW 的 869nm 功率。通过使用 BiB(3)O(6)非线性晶体，在连续波模式下还实现了 118mW 的 435nm 二次谐波产生。在我们的实验中，我们使用了 LiNbO(3) 晶体透镜来补充激光棒的热透镜，从而获得了良好的光束质量和高输出功率稳定性。
