High brightness laser based on Yb:YAG MOPA chain and adaptive optics system at room temperature

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 3...

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Veröffentlicht in:	Optics express 2018-05, Vol.26 (11), p.14592-14600
Hauptverfasser:	Xu, Liu, Wu, Yingchen, Du, Yinglei, Wang, Dan, An, Xiangchao, Li, Mi, Zhou, Tangjian, Shang, Jianli, Wang, Juntao, Liu, Zhangwen, Ou, Long, Zhao, Na, Xiang, Rujian, Tong, Lixin, Lin, Honghuan, Gao, Qingsong, Lu, Yanhua, Zhang, Kai, Tang, Chun
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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Zusammenfassung:	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 at maximum output power was 2.8 times diffraction limited with closed-loop AO system.
ISSN:	1094-4087 1094-4087
DOI:	10.1364/OE.26.014592