Efficient 1.7 μm pumping of 2 μm thulium lasers

被引：5
作者：
Kratochvil, Jan [1 ]
Sulc, Jan [1 ]
Jelinkova, Helena [1 ]
机构：
[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Brehova 7, Prague 11519, Czech Republic
来源：
OPTICS LETTERS | 2023年 / 48卷 / 16期
关键词：
CHANNEL WAVE-GUIDE; CRYSTAL; POWER; TM3+;
D O I：
10.1364/OL.495369
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Solid-state 2 mu mlasers based on thulium-doped active media Tm:YAG, Tm:YAP, and Tm:YLF were investigated under 1.7 mu m resonant diode pumping. In contrast with standard 0.8 mu m pump wavelength, a high slope efficiency was achieved, up to 80% in the case of Tm:YAP and Tm:YLF, nearing a quantum limit without relying on Tm3+-Tm3+ cross-relaxation energy transfer. Low thermal load allowed for stable continuous-wave operation with good beam quality and output power up to 6 W (Tm:YAG, Tm:YLF), and 8W(Tm:YAP). (c) 2023 Optica Publishing Group https://doi.org/10.1364/OL.495369
引用
收藏
页码：4185 / 4188
页数：4
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