## Abstract

An analytical model is developed to describe the dynamic behavior of an end-pumped Yb:YAG thin disk laser. Within the model, the rate equations, including the nonradiative relaxation process, are calculated taking into account the dependence of the fractional thermal load on the temperature of the thin disk crystal and intracavity laser intensity. The fractional thermal load is analyzed, or can be evaluated clearly, under lasing or nonlasing conditions. The stable temperature and fractional thermal load in a thin disk crystal for different radiative quantum efficiencies are obtained using the numerical iterative method. Furthermore, the dependence of the laser output intensity on variables such as pumping intensity, coupler reflectivity, radiative quantum efficiency, and the temperature of thin disk crystal is discussed.

© 2014 Optical Society of America

Full Article | PDF Article**More Like This**

Zhaocong Lin, Guangzhi Zhu, Wenguang Zhao, Yu Qiao, Mu Wang, Hailin Wang, and Xiao Zhu

J. Opt. Soc. Am. B **34**(8) 1669-1676 (2017)

Wenguang Zhao, Guangzhi Zhu, Yongqian Chen, Biaoping Gu, Mu Wang, and Jing Dong

Appl. Opt. **57**(18) 5141-5149 (2018)

Guangzhi Zhu, Xiao Zhu, Changhong Zhu, Jianli Shang, Hailin Wan, Fei Guo, and Lijun Qi

Appl. Opt. **51**(14) 2521-2531 (2012)