We demonstrate a 2.5 m ring laser with the Ho:YAG and Ho:YLF crystals end-pumped by the Tmdoped fiber laser. In the Ho:YAG laser, the continuous-wave (CW) output power was 4.72 W at a wavelength of 2090.8 nm when the incident pump power was 21.5 W, which corresponded to a slope efficiency of 26.3%. For the Q-switched operation with the 100 Hz pulse repetition frequency (PRF), an output energy of 5.16 mJ and a pulse width of 125.6 ns were achieved at a pump power of 9.53 W. In the Ho:YLF laser, up to a 4.14 CW output power was realized under an incident pump power of 22.3 W, which corresponded to a slope efficiency of 27.3%. At the 100 Hz Q-switched operation, the output energy was 4 mJ and the corresponding pulse width was 165.4 ns, when the pump power was 9.86 W.

我们展示了一个2.5 m环形激光器，其中掺有Tm掺杂的光纤激光器对Ho：YAG和Ho：YLF晶体进行了抽运。在Ho：YAG激光器中，当入射泵浦功率为21.5 W时，在2090.8 nm波长处的连续波（CW）输出功率为4.72 W，对应于26.3％的斜率效率。对于100 Hz脉冲重复频率（PRF）的Q开关操作，在9.53 W的泵浦功率下，输出能量为5.16 mJ，脉冲宽度为125.6 ns。在22.3 W的入射泵浦功率下实现了4.14 CW输出功率，这相当于27.3％的斜率效率。在100 Hz Q开关操作下，泵浦功率为9.86 W时，输出能量为4 mJ，相应的脉冲宽度为165.4 ns。