激光二极管直接抽运中红外固体激光材料综述  

Review of Mid-Infrared Laser Materials Directly Pumped by Laser-Diode

作　　者：彭雅珮[1,2] 姜本学[1] 范金太[1] 袁新强[1] 张龙[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800 [2]中国科学院大学,北京100049

出　　处：《激光与光电子学进展》2015年第2期1-21,共21页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61378069;51102257;51302284);上海市启明星计划(14QB1400900;14QB1402100)

摘　　要：利用激光二极管（LD）直接抽运稀土离子或过渡金属离子的方式产生中红外激光可以大幅度降低系统的复杂程度,提高效率。而找到合适的基质材料和离子能级结构是实现LD直接抽运产生中红外激光的关键。总结了相关研究进展和发展方向,主要包括高功率、高效率、激光二极管直接抽运的过渡金属离子掺杂II-VI族材料激光器和稀土离子掺杂晶体、玻璃、光纤、陶瓷等材料的固态激光器,这些激光器的输出涵盖了2-5μm波段,具有结构简单、成本低等优点。其中过渡金属离子掺杂II-VI族化合物,如Cr：Zn Se/Zn S,具有吸收和发射截面大、室温量子效率高、激发态吸收小等优点;而稀土离子掺杂材料,如Er^3＋/Tm^3＋/Ho^3＋：玻璃,具有能级丰富,可多波长抽运获得多波长发光等优点。通过对稀土离子在不同基质材料中晶格场结构能级调控有望实现波长可控的中红外激光输出。Directly pumping rare-earth ions or transition metal ions doped laser materials can greatly reduce the complexity of laser system and improve the efficiency. Searching a suitable substrate material and ion energy level structure is key factor to realize the mid- infrared laser directly pumped by laser- diode（LD）. Recently research progresses in mid- infrared solid- state laser of laboratory are introduced. This paper includes experimental research on the high power, high efficiency, LD direct pumping transition-metal ions doped II-VI materials laser and rare-earth ions doped crystals, glasses, fibers, and ceramics laser. Those lasers are featuring simple structure and low cost and covering 2-5 μm range wavelength. Cr^2＋-doped Zn Se and Zn S, featuring large absorption and emission cross-section, high quantum efficiency at room temperature and very low excited state absorption, are the most popular candiadate. Er^3＋/Tm^3＋/Ho^3＋-doped glasses possess rich energy level to emission multi-wavelength. By controlling the structure of rare-earth ions lattice field in different materials, it can realize tunable mid-infrared laser output.

关 键 词：激光器 中红外固体激光器 过渡金属离子 稀土离子 II-VI族材料 

分 类 号：TN248.1[电子电信—物理电子学]