High-efficiency 2 J, 20 Hz diode-pumped Nd:YAG active-mirror master oscillator power amplifier system

被引：15
作者：
Fu, Xing [1 ]
Liu, Qiang [1 ]
Li, Peilin [1 ]
Sui, Zhan [2 ]
Liu, Tinghao [1 ]
Gong, Mali [1 ]
机构：
[1] Tsinghua Univ, Dept Precis Instrument, Ctr Photon & Elect, State Key Lab Tribol, Beijing 100084, Peoples R China
[2] China Acad Engn Phys, Res Ctr Laser Fusion, Mianyang 621900, Peoples R China
来源：
APPLIED PHYSICS EXPRESS | 2015年 / 8卷 / 09期
基金：
中国国家自然科学基金;
关键词：
REPETITION-RATE; ONE JOULE; LASER; OUTPUT; YBYAG; 100-W; TRAM;
D O I：
10.7567/APEX.8.092702
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A high-efficiency joule-class diode-pumped Nd:YAG active-mirror amplifier was demonstrated. By using four elastically held Nd:YAG slabs as the active medium, we achieved a stable operation with an output pulse energy of 2.3 J at a repetition rate of 10 Hz (2.1 J at 20 Hz) in a 15 ns pulse in two-pass extraction geometry from a four-stage amplifier, corresponding to an optical-to-optical conversion efficiency of 36% for the overall laser system. To the best of our knowledge, this is the highest efficiency from a joule-class diode-pumped laser system ever reported. (C) 2015 The Japan Society of Applied Physics
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页数：3
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