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Proceedings Paper

Time-resolved deformation measurement of Yb:YAG thin disk using wavefront sensor
Author(s): Michal Chyla; Shiva S. Nagisetty; Patricie Severová; Taisuke Miura; Klaus Mann; Akira Endo; Tomas Mocek
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Paper Abstract

Even though thin-disk medium mounted on a diamond substrate is generally used for high average power operation, we found that the pulsed pumping of the Yb:YAG thin-disk mounded on a copper-tungsten heatsink could improve both optical-to-optical O-O efficiency and beam quality. We are expecting that the increase of O-O efficiency is caused by the suppression of ASE. However, the mechanism of beam quality improvement is not clear. We developed a precise measurement system of thin-disk deformations based on a Hartmann-Shack wavefront sensor. Investigating thin-disk dynamics under pulsed pumping can help to greatly improve the mode matching and allow obtaining higher output energy.

Paper Details

Date Published: 3 March 2015
PDF: 7 pages
Proc. SPIE 9343, Laser Resonators, Microresonators, and Beam Control XVII, 93431E (3 March 2015); doi: 10.1117/12.2079326
Show Author Affiliations
Michal Chyla, Institute of Physics of the ASCR, v.v.i. (Czech Republic)
Czech Technical Univ. in Prague (Germany)
Shiva S. Nagisetty, Institute of Physics of the ASCR, v.v.i. (Czech Republic)
Czech Technical Univ. in Prague (Germany)
Patricie Severová, Institute of Physics of the ASCR, v.v.i. (Czech Republic)
Taisuke Miura, Institute of Physics of the ASCR, v.v.i. (Czech Republic)
Klaus Mann, Institute of Physics of the ASCR, v.v.i. (Czech Republic)
Laser-Lab. Göttingen e.V. (Germany)
Akira Endo, Institute of Physics of the ASCR, v.v.i. (Czech Republic)
Tomas Mocek, Institute of Physics of the ASCR, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 9343:
Laser Resonators, Microresonators, and Beam Control XVII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio, Editor(s)

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