边缘抽运非对称Yb：YAG盘片激光器

详细信息

Edge-pumped asymmetric Yb：YAG/YAG thin disk lasers

State Key Laboratory of Tribology, Center for Photonics and Electronics, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China

摘要: 为了对Yb:YAG固体盘片激光器进行简单高效的抽运,采用了边缘抽运的方式,使用LD阵列通过光束耦合装置对非对称Yb:YAG/YAG复合晶体进行抽运,获得了80%以上的抽运光吸收效率和较均匀的吸收分布;同时,为了避免高功率工作下晶体过热导致性能下降,对这种抽运结构的散热装置结构进行了理论分析和实验研究,自主设计了理论散热效率超过12W/(cm2·K)的微喷式散热系统,并进行了实验。在抽运吸收功率750W时获得了123W的连续光输出,斜率效率达到34.8%。结果表明,边缘抽运方法在LD抽运盘片激光器的研究中有着很好的应用前景。
- 激光器 /
- Yb∶YAG /
- 边缘抽运 /
- 复合晶体
Abstract: In order to pump a solid disk laser effectively,edge-pumped scheme forYb:YAGthin disk solid-state laser wasadopted.More than 80% absorption efficiency and homogenous absorption distribution were obtained with an asymmetric composite crystal.The heat sink with its thermal conduction efficiency over 12W/(cm2·K) satisfied the system requirement forcooling well.In the experiment,maximum output power of over 123W was achieved with slope efficiency of 34.8%.The results show that it is prospective to adopt edge-pumped scheme for thin disk solid-state lasers.
- lasers /
- Yb：YAG /
- edge-pumped /
- composite crystal

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