We report the first room temperature gain-switched Fe:ZnSe hot-pressed ceramic laser pumped by 2.94 µm radiation of mechanically Q-switched Er:YAG laser. The maximum output energy at 4.2 µm was 41 mJ at 3 Hz repetition rate and 120 ns pulse duration. The measured slope efficiency was 25% with respect to the absorbed energy. This technique could be attractive for the future development of high-energy short-pulse solid-state mid-IR systems.

中文翻译：

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热压陶瓷 Fe:ZnSe 增益开关激光器

我们报告了第一个室温增益开关 Fe:ZnSe 热压陶瓷激光器，由机械 Q 开关 Er:YAG 激光器的 2.94 µm 辐射泵浦。4.2 µm 处的最大输出能量为 41 mJ，重复频率为 3 Hz，脉冲持续时间为 120 ns。相对于吸收能量，测得的斜率效率为 25%。这项技术对于高能短脉冲固态中红外系统的未来发展可能具有吸引力。