高效 Yb³⁺:CaGdAlO₄ 体块和飞秒激光写入波导激光器。

Efficient Yb³⁺:CaGdAlO₄ bulk and femtosecond-laser-written waveguide lasers.

出版信息

Opt Lett. 2015 Aug 1;40(15):3552-5. doi: 10.1364/OL.40.003552.

DOI:10.1364/OL.40.003552

Abstract

We report on, to the best of our knowledge, the first fs-laser-written waveguide laser in Yb3+:CaGdAlO4 (Yb:CALGO). With Yb:CALGO crystals grown in our labs, we obtained a slope efficiency of 69% and up to 2.4 W of continuous wave (cw) output power in a waveguide-laser configuration. Moreover, bulk laser experiments with Yb:CALGO were performed, and slope efficiencies up to 73%, optical-to-optical efficiencies of 65%, and maximum cw output powers of 3.3 W were reached. These are the highest efficiencies in the laser configuration with Yb:CALGO.

摘要

据我们所知，我们首次在 Yb3+:CaGdAlO4（Yb:CALGO）中报告了 fs 激光写入波导激光器。使用我们实验室生长的 Yb:CALGO 晶体，我们在波导激光器结构中获得了 69%的斜率效率和高达 2.4 W 的连续波（cw）输出功率。此外，还进行了 Yb:CALGO 的体块激光器实验，达到了高达 73%的斜率效率、65%的光光效率和 3.3 W 的最大连续波输出功率。这些是 Yb:CALGO 激光结构中的最高效率。