2.33μm 连续波和被动调 Q 的 Tm:YAG 激光二极管泵浦紧凑型激光器。

Compact diode-pumped continuous wave and passively Q switched Tm:YAG laser at 2.33 µm.

出版信息

Opt Lett. 2022 Dec 1;47(23):6265-6268. doi: 10.1364/OL.478341.

PMID:37219223

Abstract

Compact diode-pumped continuous wave (CW) and passively Q switched Tm:YAG lasers operating on the H → H transition are demonstrated. Using a 3.5-at.% Tm:YAG crystal, a maximum CW output power of 1.49 W is achieved at 2330 nm with a slope efficiency of 10.1%. The first Q switched operation of the mid-infrared Tm:YAG laser around 2.3 µm is realized with a few-atomic-layer MoS saturable absorber. Pulses as short as 150 ns are generated at a repetition rate of 190 kHz, corresponding to a pulse energy of 1.07 µJ. Tm:YAG is an attractive material for diode-pumped CW and pulsed mid-infrared lasers emitting around 2.3 µm.

摘要

我们演示了基于 H → H 跃迁的紧凑型二极管泵浦连续波 (CW) 和被动调 Q 开关 Tm:YAG 激光器。使用 3.5at.% 的 Tm:YAG 晶体，在 2330nm 处实现了 1.49W 的最大 CW 输出功率，斜率效率为 10.1%。利用几个原子层的 MoS2 可饱和吸收体，实现了中红外 Tm:YAG 激光器在 2.3μm 附近的首次调 Q 运转。在 190kHz 的重复率下，产生了最短为 150ns 的脉冲，对应于 1.07µJ 的脉冲能量。Tm:YAG 是一种有吸引力的材料，可用于二极管泵浦的 CW 和脉冲中红外激光器，其发射波长约为 2.3μm。