High power continuous-wave and quasi-continuous-wave operation of diode-pumped Tm:YAG all-solid-state laser oscillator at 2.02 μm

被引：0
|
作者：
Wu, Jian-Hong [1 ,2 ,4 ]
Bian, Qi [1 ,2 ,3 ]
Bo, Yong [1 ,2 ,3 ]
Cui, Da-Fu [1 ,2 ,3 ]
Peng, Qin-Jun [1 ,2 ,3 ]
机构：
[1] Key Lab of Solid State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing,100190, China
[2] Key Lab of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing,100190, China
[3] Institute of Optical Physics and Engineering Technology, Qilu Zhongke, Jinan,250000, China
[4] University of Chinese Academy of Sciences, Beijing,100190, China
来源：
Optik | 2025年 / 326卷
基金：
中国国家自然科学基金;
关键词：
High power lasers - Infrared devices - Neodymium lasers - Optical pumping - Oscillistors - PIN diodes - Power semiconductor diodes - Pulsed laser applications - Semiconductor lasers - Solid state oscillators;
D O I：
10.1016/j.ijleo.2025.172279
中图分类号：
学科分类号：
摘要：
We present a high-power all-solid-state Tm:YAG laser operating at 2.02 μm in both continuous-wave (CW) and quasi-continuous-wave (QCW) regimes. Through rigorous testing of CW laser diodes (LDs) for QCW pulsed operation, the system achieves an average output power of up to 33.97 W at 100 Hz with a pulse width of 670 μs and a beam quality of M2= 8.66. In the CW regime, it delivers a record-high output power of 317.3 W. The beam quality is degraded to be M2= 22.75 due to the severe thermal effects in the crystal. This is the first demonstration of CW and QCW dual-regime operation in a single diode-pumped Tm:YAG laser oscillator. This versatile laser system offers a reliable solution for applications requiring high-power mid-infrared sources. © 2025 Elsevier GmbH
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