100 Hz operation in 10 PW/sr.cm2 class Nd:YAG Micro-MOPA

被引：24
作者：
Kawasaki, Taisuke [1 ]
Yahia, Vincent [1 ]
Taira, Takunori [1 ,2 ]
机构：
[1] Inst Mol Sci, Ctr Mesoscop Sci, 38 Nishigo Naka, Myodaiji, Osaki 4448585, Japan
[2] RIKEN SPring 8 Ctr, Laser Driven Electron Accelerat Technol Grp, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan
来源：
OPTICS EXPRESS | 2019年 / 27卷 / 14期
关键词：
PEAK POWER; LASER;
D O I：
10.1364/OE.27.019555
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An Nd:YAG Micro-MOPA, based on a microchip master oscillator and power amplifier system with gain aperture beam cleaning, could generate sub-ns 200 mJ pulses with extremely high brightness of 18 PW/sr.cm(2) [Opt. Express 26 8609 (2018)]. However, the system repetition rate was limited to 10 Hz, due to thermal problems occurring in the main amplifier rod under high-power operation. In this work, we achieved 100 Hz operation with pulse brightness of 11 PW/sr.cm(2) by optical compensation of thermal lensing, which was evaluated through calculations and an experiment. (c) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：19555 / 19561
页数：7
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