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  • Received: Dec. 4, 2019

    Accepted: Feb. 26, 2020

    Posted: Apr. 2, 2020

    Published Online: Apr. 2, 2020

    The Author Email: Jie Guo (gracejie123@siom.ac.cn), Xiaoyan Liang (liangxy@siom.ac.cn)

    DOI: 10.1017/hpl.2020.8

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    Wei Wang, Di Sun, Xiao Du, Jie Guo, Xiaoyan Liang. High-power operation of double-pass pumped Nd:YVO4 thin disk laser[J]. High Power Laser Science and Engineering, 2020, 8(1): 01000e10

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High Power Laser Science and Engineering, Vol. 8, Issue 1, 01000e10 (2020)

High-power operation of double-pass pumped Nd:YVO4 thin disk laser

Wei Wang1,2, Di Sun1,2, Xiao Du1,2, Jie Guo1,†, and Xiaoyan Liang1,3,†

Author Affiliations

  • 1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai201800, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing100049, China
  • 3School of Physical Science and Technology, ShanghaiTech University, Shanghai200031, China

Abstract

A simple, compact, double-pass pumped Nd:YVO4 thin disk laser is demonstrated. Its continuous-wave performance with different Nd doping concentrations and thicknesses is investigated experimentally. The maximum output power of 17.7 W is achieved by employing a 0.5 at.% doped sample, corresponding to an optical-to-optical efficiency of 46% with respect to the absorbed pump power. In addition, a numerical analysis and an experimental study of the temperature distribution, and thermal lens effect of the Nd:YVO4 thin disk, are presented considering the influence of the energy transfer upconversion effect and the temperature dependence of the thermal conductivity tensor. The simulated results are in good agreement with the experimental results.

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