Numerical analysis of thermal lens effects in a nonplanar ring oscillator

Xiaoqiang Zhang; Cailian Yang; Jie Guo; Ying Wang; Peng Xu; Make Ying; Yanxia Xu; Wei Zhang; Qinghong Zhou; Tao Liu

doi:10.1117/12.2690365

17 August 2023 Numerical analysis of thermal lens effects in a nonplanar ring oscillator

Xiaoqiang Zhang, Cailian Yang, Jie Guo, Ying Wang, Peng Xu, Make Ying, Yanxia Xu, Wei Zhang, Qinghong Zhou, Tao Liu

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 127570X (2023) https://doi.org/10.1117/12.2690365
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

The thermal lens calculated by numerical calculations plays a significant role in the non-planar ring oscillator (NPRO). And the temperature, strain, and face bugling required for the calculation are obtained by finite element analysis methods. According to the finite element analysis, we can easily know that the maximum temperature of the crystal is 306.5K and the maximum thermal strain is 1.0E-4 with 3W pump power. What most important in the optical path difference analysis is the thermal lens induced by temperature. In this work, we provided the data for studying the influence of thermal lens on loss difference and made the thermal model refined, which is the basis for an optimized resonator design with high power and narrow linewidth seed light source systems.

Citation Download Citation

Xiaoqiang Zhang, Cailian Yang, Jie Guo, Ying Wang, Peng Xu, Make Ying, Yanxia Xu, Wei Zhang, Qinghong Zhou, and Tao Liu "Numerical analysis of thermal lens effects in a nonplanar ring oscillator", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 127570X (17 August 2023); https://doi.org/10.1117/12.2690365

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