Open AccessHigh brightness laser based on Yb:YAG MOPA chain and adaptive optics system at room temperature
Author(s) -
Liang Xu,
Yingchen Wu,
Yi Du,
Dan Wang,
Xiangchao An,
Mi Li,
Tangjian Zhou,
Jianli Shang,
Juntao Wang,
Liu Zhang-Wen,
Long Ou,
Na Zhao,
Rong Xiang,
Lixin Tong,
Hungyen Lin,
Qingsong Gao,
Yanhua Lü,
Kai Zhang,
Chun Tang
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.014592
Subject(s) - optics , amplifier , laser , laser beam quality , materials science , laser linewidth , beam (structure) , optoelectronics , physics , laser beams , cmos
We demonstrate a master oscillator power amplifier (MOPA) architecture based on Yb:YAG amplifiers and adaptive optics (AO) systems with a high power and high beam quality laser output. With two conduction cooled, dual-end-pumped Yb:YAG zigzag-slab amplifiers at room temperature, the fiber laser of 300 W was scaled to 11.9 kW. Moreover, AO system positioned downstream was utilized to correct wavefront of amplified laser. The beam quality β at maximum output power was 2.8 times diffraction limited with closed-loop AO system.