Time-resolved deformation measurement of Yb:YAG thin disk using wavefront sensor

Michal Chyla; Shiva S. Nagisetty; Patricie Severová; Taisuke Miura; Klaus Mann; Akira Endo; Tomas Mocek

doi:10.1117/12.2079326

3 March 2015 Time-resolved deformation measurement of Yb:YAG thin disk using wavefront sensor

Michal Chyla, Shiva S. Nagisetty, Patricie Severová, Taisuke Miura, Klaus Mann, Akira Endo, Tomas Mocek

Proceedings Volume 9343, Laser Resonators, Microresonators, and Beam Control XVII; 93431E (2015) https://doi.org/10.1117/12.2079326
Event: SPIE LASE, 2015, San Francisco, California, United States

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.

Citation Download Citation

Michal Chyla, Shiva S. Nagisetty, Patricie Severová, Taisuke Miura, Klaus Mann, Akira Endo, and Tomas Mocek "Time-resolved deformation measurement of Yb:YAG thin disk using wavefront sensor", Proc. SPIE 9343, Laser Resonators, Microresonators, and Beam Control XVII, 93431E (3 March 2015); https://doi.org/10.1117/12.2079326

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