Collection Of theses on high power laser and plasma physics, 2011, 9 (1): 111401, Published Online: Jun. 2, 2017  

Theoretical and experimental research on cryogenic Yb:YAG regenerative amplif ier

Author Affiliations
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract
Based on the theory of quasi-three-level rate equations modified by amplified spontaneous emission, the stored energy density and the small signal gain of the cryogenic Yb:YAG regenerative amplifier for a given geometry for pulsed pumping in three dimensions are theoretically studied using the Monte Carlo simulation. The present model provides a straightforward procedure to design the Yb:YAG parameters and the optical coupling system for optimization when running at cryogenic temperature. A fiber-coupled laser diode end-pumped cryogenic Yb:YAG regenerative amplifier running at 1 030 nm is demonstrated with a maximum output energy 10.2 mJ at a repetition rate of 10 Hz. A very good agreement between the experiments and the theoretical model is achieved.

Xinghua Lu, Jiangfeng Wang, Xiang Li, Youen Jiang, Wei Fan, Xuechun Li. Theoretical and experimental research on cryogenic Yb:YAG regenerative amplif ier[J]. Collection Of theses on high power laser and plasma physics, 2011, 9(1): 111401.

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