A 61-mJ, 1-kHz cryogenic Yb:YAG laser amplifier*

被引：2
|
作者：
He, Huijun [1 ,2 ,3 ]
Yu, Jun [1 ,2 ]
Zhu, Wentao [1 ,2 ]
Lin, Qingdian [1 ,2 ]
Guo, Xiaoyang [1 ,2 ]
Zhou, Cangtao [1 ,2 ]
Ruan, Shuangchen [1 ,2 ,3 ]
机构：
[1] Shenzhen Technol Univ SZTU, Shenzhen Key Lab Ultraintense Laser & Adv Mat Tec, Ctr Adv Mat Diagnost Technol, Shenzhen 518118, Peoples R China
[2] Shenzhen Technol Univ SZTU, Coll Engn Phys, Shenzhen 518118, Peoples R China
[3] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China
来源：
CHINESE PHYSICS B | 2021年 / 30卷 / 12期
基金：
美国国家科学基金会;
关键词：
ytterbium laser system; Yb; YAG laser amplifier; cryogenic laser amplification; high energy laser amplification; COOLED YB-YAG;
D O I：
10.1088/1674-1056/ac140d
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report a diode-pumped rod-type Yb:YAG laser amplifier operating at 1 kHz.Cryogenic cooling method was adopted to make the Yb:YAG crystal work with four-level behavior. A single-frequency fiber laser acts as the seed in an actively Q-switched Yb:YAG oscillator. The resonator delivers 5.75-mJ pulses at 1 kHz with a pulse duration of approximately 40 ns. The pulses were amplified to 61 mJ in a four-pass rod-type Yb:YAG amplifier with optical-to-optical efficiency of 24% in the main amplifier. The M (2) parameter of the output laser is < 1.4.
引用
收藏
页数：4
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