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Proceedings Paper

Direct liquid cooled Nd:YLF thin disk laser with unstable resonator
Author(s): Zhibin Ye; Zhen Cai; Bo Tu; Ke Wang; Qingsong Gao; Chun Tang; Chong Liu
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Paper Abstract

A large-aperture Nd:YLF thin disk laser oscillator is demonstrated, in which the refractive index matching liquid is used as the coolant flowing in narrow channels to cool the multiple thin disks directly. A high uniformity of pump intensity distribution is realized by using waveguides. With the a-cut Nd:YLF thin disks at different doping levels, a linearly polarized laser with the maximum output energy of 346 mJ is achieved with the repetition of 350 Hz, corresponding to an optical-optical efficiency of 8.7%, and a slope efficiency of 10%. The beam quality β factor is estimated less than 8 in the horizontal direction due to the positive branch confocal unstable resonator. To the best of our knowledge, it is the first time that the direct-liquid-cooled Nd:YLF thin disk unstable resonator is reported.

Paper Details

Date Published: 15 October 2015
PDF: 7 pages
Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 967121 (15 October 2015); doi: 10.1117/12.2202959
Show Author Affiliations
Zhibin Ye, China Academy of Engineering Physics (China)
Zhejiang Univ. (China)
Zhen Cai, China Academy of Engineering Physics (China)
Bo Tu, China Academy of Engineering Physics (China)
Ke Wang, China Academy of Engineering Physics (China)
Qingsong Gao, China Academy of Engineering Physics (China)
Chun Tang, China Academy of Engineering Physics (China)
Chong Liu, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 9671:
AOPC 2015: Advances in Laser Technology and Applications
Shibin Jiang; Lijun Wang; Chun Tang; Yong Cheng, Editor(s)

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