Czech Technical University in Prague, Department of Nuclear Sciences and Physical Engineering, Prague, Czech Republic.
Opt Lett. 2013 Sep 1;38(17):3406-9. doi: 10.1364/OL.38.003406.
Spectroscopic and laser properties of a newly developed high optical quality Er:CaF2 hot-formed ceramic were investigated. Under pulsed 968 nm laser diode pumping, the mid-infrared (2.7 μm) radiation was obtained with a slope efficiency of 3%. Laser tunability was reached using a birefringent filter and the laser tuning range of 118 nm, from 2687 up to 2805 nm, was demonstrated. The maximal output energy reached was 0.48 mJ at 2730 nm for the absorbed pumping energy 34 mJ.
研究了一种新开发的具有高光学质量的掺铒氟化钙（Er:CaF2）热压陶瓷的光谱和激光性能。在脉冲 968nm 激光二极管泵浦下，获得了斜率效率为 3%的中红外（2.7μm）辐射。通过双折射滤波器实现了激光调谐，演示了 118nm 的激光调谐范围，从 2687nm 到 2805nm。对于吸收的泵浦能量 34mJ，在 2730nm 时最大输出能量达到 0.48mJ。
