26W中波红外固体激光器  

26 W Mid-Infrared Solid-State Laser

作　　者：韩隆[1] 苑利钢[1] 陈国[1] 候天禹 魏磊[1] 何利杰[1] 王克强[1] 

机构地区：[1]华北光电技术研究所固体激光技术重点实验室,北京100015

出　　处：《中国激光》2015年第3期21-26,共6页Chinese Journal of Lasers

摘　　要：阐述了一种获得高功率3~5μm中红外激光输出的实验方案,即先通过高功率1.94μm光源抽运Ho：YLF晶体,获得高重复频率2.05μm激光输出,通过端抽运放大方式,提升2.05μm激光功率水平,最终2.05μm激光抽运光参量振荡器（OPO）实现高功率中波激光输出。在水冷工作体制下获得了重复频率5 k Hz、最大功率26.9 W的中波输出,脉冲宽度为24.4 ns,2.05μm到3~5μm的光光转换效率达50%,通过角度调谐获得不同波长的中红外激光输出,验证了该实验方案作为一种获得高功率、高效率、高重复频率中红外激光输出工作方式的可行性。A high power mid infrared（Mid-IR） laser is introduced. High frequency laser of 2.05 μm is obtained in Ho：YLF laser pumped by 1.94 μm laser, and the power of 2.05 μm laser is increased by amplifying in an endpumping schedule, finally, a high power Mid-IR laser is obtained in a OPO pumped by the 2.05 μm laser. The schedule is cooled by water,the max power of Mid- IR laser is up to 26.9 W, the pulse width is 24.4 ns, the efficiency from 2.05 μm to Mid- IR is up to 50%, and the wavelength is varied with the different input angle.Through the experience, it is proved that a high power, high frequency and high efficiency Mid-IR laser can be realized in this method.

关 键 词：激光器 2μm 光参量振荡器 3~5μm 高重复频率 Ho:YLF 

分 类 号：TN248.1[电子电信—物理电子学]