Modeling and optimization of thin disk structure for high power sub-joule laser

Patricie Severová; Martin Smrz; Michal Chyla; Taisuke Miura; Akira Endo; Tomáš Mocek

doi:10.1117/12.2017388

17 May 2013 Modeling and optimization of thin disk structure for high power sub-joule laser

Patricie Severová, Martin Smrz, Michal Chyla, Taisuke Miura, Akira Endo, Tomáš Mocek

Proceedings Volume 8780, High-Power, High-Energy, and High-Intensity Laser Technology; and Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers; 87800W (2013) https://doi.org/10.1117/12.2017388
Event: SPIE Optics + Optoelectronics, 2013, Prague, Czech Republic

Abstract

We analyzed the transient response characteristics of Yb:YAG thin disk in to clarify the experimentally obtained advantages of pulsed pumping in 1-kHz repetition rate reported in ref. 2. We applied commercial 2D FEA software which can calculate transient response of thermal effects. The temperature distributions of thin disk in both the CW power of 125-W and the average power of pulsed 125-W have been calculated. Even the net heat power were same in both CW and pulsed pumping, the temperature distribution was lower in pulsed pumping which can provide higher O-O efficiency and smaller beam distortion. The time evolution of OPD in the pulsed pumping has been analyzed, too.

Citation Download Citation

Patricie Severová, Martin Smrz, Michal Chyla, Taisuke Miura, Akira Endo, and Tomáš Mocek "Modeling and optimization of thin disk structure for high power sub-joule laser", Proc. SPIE 8780, High-Power, High-Energy, and High-Intensity Laser Technology; and Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers, 87800W (17 May 2013); https://doi.org/10.1117/12.2017388

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