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15 October 2015 Direct liquid cooled Nd:YLF thin disk laser with unstable resonator
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Proceedings Volume 9671, AOPC 2015: Advances in Laser Technology and Applications; 967121 (2015) https://doi.org/10.1117/12.2202959
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhibin Ye, Zhen Cai, Bo Tu, Ke Wang, Qingsong Gao, Chun Tang, and Chong Liu "Direct liquid cooled Nd:YLF thin disk laser with unstable resonator", Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 967121 (15 October 2015); https://doi.org/10.1117/12.2202959
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