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Proceedings Paper

In-situ optical phase distortion measurement of Yb:YAG thin disk in high average power regenerative amplifier
Author(s): Taisuke Miura; Michal Chyla; Martin Smrž; Siva Sankar Nagisetty; Patricie Severová; Ondřej Novák; Akira Endo; Tomáš Mocek
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Paper Abstract

We are developing one kilohertz picosecond Yb:YAG thin disk regenerative amplifier with 500-W average power for medical and industrial applications. In case of high energy pulse amplification, a large area mode matching in gain media, which is drastically degenerated by the optical phase distortion, is required to avoid optical damage. We designed in-situ thin disk deformation measurement based on the combination of a precise wavefront sensor and a single mode probe beam. In contrast to a conventional interferometric measurement, this measurement is compact, easy-to-align, and is less affected by mechanical vibrations.

Paper Details

Date Published: 26 February 2013
PDF: 8 pages
Proc. SPIE 8603, High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications II, 860303 (26 February 2013); doi: 10.1117/12.2004496
Show Author Affiliations
Taisuke Miura, Institute of Physics ASCR, v.v.i. (Czech Republic)
Michal Chyla, Institute of Physics ASCR, v.v.i. (Czech Republic)
Martin Smrž, Institute of Physics ASCR, v.v.i. (Czech Republic)
Siva Sankar Nagisetty, Institute of Physics ASCR, v.v.i. (Czech Republic)
Patricie Severová, Institute of Physics ASCR, v.v.i. (Czech Republic)
Ondřej Novák, Institute of Physics ASCR, v.v.i. (Czech Republic)
Akira Endo, Institute of Physics ASCR, v.v.i. (Czech Republic)
Tomáš Mocek, Institute of Physics ASCR, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 8603:
High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications II
Friedhelm Dorsch, Editor(s)

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