DSO National Laboratories, Singapore.
Opt Lett. 2013 May 15;38(10):1709-11. doi: 10.1364/OL.38.001709.
We report on a Yb:YAG thin-disk laser with 1.1 kW output power and beam quality factor M²<1.4 using a simple stable resonator comprising just a single cavity mirror and a single thin disk, without the use of any aspherical elements or any adaptive optics. An optical-to-optical efficiency of 40% was obtained. The cavity was designed to give good beam quality and low misalignment sensitivity to maintain stable and robust laser operation throughout the changes in the thin-disk curvature. To the best of the authors' knowledge, this is the first time an output power beyond 1 kW has been achieved from a single thin-disk laser in near fundamental mode operation (M²<1.4).
我们报道了一种使用简单稳定的谐振腔（仅由单个腔镜和单个薄盘组成，不使用任何非球面元件或任何自适应光学元件）实现 1.1kW 输出功率和光束质量因子 M²<1.4 的 Yb:YAG 薄盘激光器。获得了 40%的光光效率。该腔的设计旨在提供良好的光束质量和低失调灵敏度，以在薄盘曲率变化时保持稳定和稳健的激光运行。据作者所知，这是首次在近基模（M²<1.4）下从单个薄盘激光器获得超过 1kW 的输出功率。
