LISA Laser Products OHG, Katlenburg-Lindau, Germany. samir.lamrini@ruhr‐uni‐bochum.de
Opt Lett. 2012 Feb 15;37(4):515-7. doi: 10.1364/OL.37.000515.
We report on the high-energy laser operation of an Ho:YAG oscillator resonantly pumped by a GaSb-based laser diode stack at 1.9 μm. The output energy was extracted from a compact plano-concave acousto-optically Q-switched resonator optimized for low repetition rates. Operating at 100 Hz, pulse energies exceeding 30 mJ at a wavelength of 2.09 μm were obtained. The corresponding pulse duration at the highest pump power was 100 ns, leading to a maximum peak power above 300 kW. Different pulse repetition rates and output coupling transmissions of the Ho:YAG resonator were studied. In addition, intracavity laser-induced damage threshold measurements are discussed.
我们报告了一种 Ho:YAG 振荡器的高能激光运行情况，该振荡器通过 1.9 μm 的 GaSb 基激光二极管堆叠进行共振泵浦。输出能量从优化为低重复率的紧凑型平凹声光 Q 开关谐振器中提取。在 100 Hz 下工作时，在 2.09 μm 的波长处获得了超过 30 mJ 的脉冲能量。在最高泵浦功率下，相应的脉冲持续时间为 100 ns，导致超过 300 kW 的最大峰值功率。研究了 Ho:YAG 谐振器的不同脉冲重复率和输出耦合传输。此外，还讨论了腔内激光诱导损伤阈值测量。
