中红外激光晶体材料作为激光技术核心增益材料之一, 在**光电对抗、激光医疗、卫星遥感、环境监测、基础科学等领域具有非常重要的应用。本文介绍了近年来在中红外氟化物激光晶体材料中, 关于晶体生长、光学性能优化以及中红外激光性能等方面的研究工作, 特别是在中红外光学性能优化调控方面, 主要介绍基于稀土能级耦合的相互作用, 有效抑制发光离子的自终止效应, 以及为发光离子提供有效泵浦通道。

As one of the core gain materials of laser technology, mid-infrared laser crystal materials have very important applications in military electrooptical countermeasures, laser medicine, satellite remote sensing, molecular monitoring, basic science and other fields. Recent research progresses on crystal growth, optical performance control and laser performance in mid-infrared fluoride laser crystal materials are reviewed in this paper. Especially in the aspect of mid-infrared optical performance control, it mainly introduces the interaction based on rare earth ion energy level coupling. As a result, it can effectively suppress the self-termination effect of luminescent ions and provide an effective pump channel for luminescent ions.