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Proceedings Paper

Sapphire face cooling for high-repetition-rate terawatt-class Ti:sapphire amplifier
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Paper Abstract

In this work, we evaluated the feasibility of sapphire conductive cooling for short-pulse Ti:Sapphire (Ti:sa) laser amplifiers which suffers from thermal issues under high-repetition-rate and high-energy operation. Numerical heat transfer simulations of 100-TW class sapphire face-cooled Ti:sa gain modules operated around 300 W average powers are presented. The distributions of temperature, stress, strain, and birefringence in liquid cooled sapphire/Ti:sa/sapphire assembly are calculated by a finite element analysis. Based on these data, the thermal induced wave front distortions and depolarization are investigated for different repetition rates. We determine that sapphire face cooling concept holds a promise of achieving higher energies and repetition-rates in Ti:Sa amplifiers.

Paper Details

Date Published: 24 July 2018
PDF: 9 pages
Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108273R (24 July 2018); doi: 10.1117/12.2326819
Show Author Affiliations
Tingrui Huang, Shanghai Institute of Optics and fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Wenfa Huang, Shanghai Institute of Optics and fine Mechanics (China)
Jiangfeng Wang, Shanghai Institute of Optics and fine Mechanics (China)
Xinghua Lu, Shanghai Institute of Optics and fine Mechanics (China)
Wei Fan, Shanghai Institute of Optics and fine Mechanics (China)
Xuechun Li, Shanghai Institute of Optics and fine Mechanics (China)


Published in SPIE Proceedings Vol. 10827:
Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018)
Yingjie Yu; Chao Zuo; Kemao Qian, Editor(s)

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