掺镱石榴石酸钆铝薄片激光器，斜率效率达 70%，波长调谐范围达 90nm。

Yb:CaGdAlO4 thin-disk laser with 70% slope efficiency and 90 nm wavelength tuning range.

机构信息

Institut für Laser-Physik, Universität Hamburg, Luruper Chaussee 149, Hamburg 22761, Germany.

出版信息

Opt Lett. 2013 Jun 1;38(11):1966-8. doi: 10.1364/OL.38.001966.

DOI:10.1364/OL.38.001966

Abstract

Thin-disk laser experiments with Yb:CaGdAlO(4) (Yb:CALGO) have been performed. A slope efficiency of 70% and an optical-to-optical efficiency of 57% could be achieved with a maximum output power of 30.7 W. These are so far the highest efficiencies obtained with this material. Furthermore, tuning experiments were carried out leading to a tuning range of 90 nm in total and 50 nm with more than 20 W of output power. This is to the best of our knowledge the widest wavelength tuning range of any material demonstrated at this power level. For all experiments the thermal evolution of the crystal surface temperature during laser operation was investigated.

摘要

已经进行了掺镱钙钆铝石榴石（Yb：CALGO）薄片激光器实验。实现了 70%的斜率效率和 57%的光光效率，最大输出功率为 30.7 W。这些是迄今为止使用这种材料获得的最高效率。此外，还进行了调谐实验，总共实现了 90nm 的调谐范围，输出功率超过 20W 时则实现了 50nm 的调谐范围。据我们所知，这是在该功率水平下展示的任何材料的最宽波长调谐范围。对于所有实验，都研究了激光运行期间晶体表面温度的热演变。