A Tm³⁺:Lu₂O₃ ceramics laser with the L-shaped cavity in-band pumped by a fiber laser at 1670 nm was studied in CW and passively Q-switched multi-wavelength regimes. The CW laser operated at 2066 nm at the weak pump power and self-tuned to 1966 nm and further to 1940 nm at higher pump power. The maximum power in the CW regime at 1940 nm reached 9.5 W, while the average power of 3.6 W was registered in the Q-switched regime with the pulse repetition rate of 110–170 kHz and the pulse duration of 200–240 ns. The Q-switched operation was obtained using a Cr²⁺:ZnSe saturable absorber. Pulsed regime started at the shortest wavelength of 1940 nm and self-tuned to the double-wavelength of 1940 nm and 1966 nm at higher pump power.

在 CW 和被动调 Q 多波长范围内研究了具有 L 形腔带内泵浦的Tm ³⁺ :Lu ₂ O ₃陶瓷激光器，波长为 1670 nm。CW 激光器在弱泵浦功率下工作在 2066 nm，并自调谐至 1966 nm，并在更高泵浦功率下进一步至 1940 nm。在 1940 nm CW 范围内的最大功率达到 9.5 W，而在 Q 开关范围内记录的平均功率为 3.6 W，脉冲重复率为 110-170 kHz，脉冲持续时间为 200-240 ns。使用 Cr ²⁺ :ZnSe 可饱和吸收器获得 Q 开关操作。脉冲状态从最短的 1940 nm 波长开始，并在更高的泵浦功率下自调谐至 1940 nm 和 1966 nm 的双波长。