8.2 kW high beam quality quasi-continuous-wave face-pumped Nd:YAG slab amplifier

被引：41

作者：

Chen, Zhong-zheng ^{[1
,2
]}

Xu, Yi-ting ^{[1
]}

Guo, Ya-ding ^{[1
]}

Wang, Bao-shan ^{[1
]}

Xu, Jian ^{[1
]}

Xu, Jia-lin ^{[1
]}

Gao, Hong-wei ^{[1
]}

Yuan, Lei ^{[1
]}

Yuan, Hong-tao ^{[1
]}

Lin, Yan-yong ^{[1
]}

Xiao, Yun-sheng ^{[1
]}

Bo, Yong ^{[1
]}

Peng, Qin-jun ^{[1
]}

Lei, Wen-qiang ^{[1
]}

Cui, Da-fu ^{[1
]}

Xu, Zu-yan ^{[1
]}

机构：

[1] Chinese Acad Sci, Res Ctr Laser Phys & Technol, Tech Inst Phys & Chem, Key Lab Funct Crystal & Laser Technol, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100190, Peoples R China

来源：

APPLIED OPTICS | 2015年 / 54卷 / 16期

关键词：

LASER-AMPLIFIERS; HIGH-EFFICIENCY; CERAMIC LASER; HIGH-POWER; SYSTEM; OUTPUT; ROD;

D O I：

10.1364/AO.54.005011

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An 8 kW level quasi-continuous-wave (QCW) face-pumped 1064 nm slab laser with high beam quality was developed by a master oscillator power amplifier (MOPA) system. A single-mode fiber seed laser was amplified by two-stage single-pass Nd:YAG rod preamplifiers and four face-pumped Nd:YAG slab amplifiers. The slab amplifiers were well designed with uniform pumping and uniform cooling for well-distributed thermal and stress. A dynamically feedbacked optical aberration compensation device was employed to correct low-order optical aberration, and the residue high-order optical aberration was corrected by an adaptive optics system. The QCW MOPA delivered up to an average power of 8.2 kW with a pulse duration of 200 mu s at a repetition rate of 400 Hz. The beam quality factor was measured to be beta = 3.5. (C) 2015 Optical Society of America

引用

页码：5011 / 5015

页数：5

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