High repetition-Rate laser diode side-Pumped burst-mode Nd:YAG laser with enhanced output pulse uniformity

被引：0
|
作者：
Yan, Renpeng [1 ,2 ]
Xu, Haobo [1 ,2 ]
Jiang, Yugang [3 ]
Wang, Wei [4 ]
Fan, Rongwei [1 ]
Chen, Deying [1 ]
Li, Xudong [1 ,2 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Laser Spatial Informat, Harbin 150006, Peoples R China
[2] Harbin Inst Technol, Zhengzhou Res Inst, Zhengzhou 450007, Peoples R China
[3] Tianjin Jinhang Tech Phys Inst, Tianjin Key Lab Opt Thin Film, Tianjin 300308, Peoples R China
[4] Heilongjiang Inst Technol, Heilongjiang Prov Key Lab Optoelect & Laser Techno, Harbin 150050, Peoples R China
来源：
INFRARED PHYSICS & TECHNOLOGY | 2024年 / 142卷
基金：
中国国家自然科学基金;
关键词：
High repetition-rate; Side-pumped; Electro-optical Q switch; Burst-mode; Laser stability; Thermal effects; OH PLIF; POWER; KHZ; REDUCTION; CRYSTALS; DESIGN; SYSTEM;
D O I：
10.1016/j.infrared.2024.105551
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A theoretical and experimental investigation is conducted on a high repetition-rate side-pumped burst-mode Nd: YAG laser. The absorbed pumping power distribution and laser resonator are meticulously optimized to enlarge the area of the fundamental mode and improve thermal stability. With the 1 ms pumping duration and a pumping frequency of 10 Hz, the pulsed laser's burst energy, peak power, and pulse width achieve 0.29 J, 347 kW, and 16 ns, respectively, with the Q-switched repetition rate of 50 kHz. The minimum coefficient of variation for the laser pulse train remains below 5 %. This study represents the first demonstration of a long-term reliable output from a high-energy, nanosecond-pulsed, side-pumped Nd:YAG burst laser operating at 50 kHz.
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页数：11
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