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Proceedings Paper

Deformable mirror for high power laser applications
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Paper Abstract

The modern trend in high power laser applications such as welding, cutting and surface hardening lies in the use of solid-state lasers. The output beam of these lasers is characterized by a Gaussian intensity distribution. However, the laser beams with different intensity distributions, e.g. top-hat, are preferable in various applications. In this paper we present a new type of deformable mirror suitable for the corresponding laser beam shaping. The deformation of the mirror is achieved by an underlying array of actuators and a pressurized coolant that also provides the necessary cooling. We describe the results of the surface shape measurement using a 3D scanner for different settings of actuators. Further, we show the achieved intensity distributions measured by a beam profiler for a low power laser beam reflected from the mirror.

Paper Details

Date Published: 7 January 2015
PDF: 5 pages
Proc. SPIE 9442, Optics and Measurement Conference 2014, 94420W (7 January 2015); doi: 10.1117/12.2086617
Show Author Affiliations
Libor Mrňa, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)
Martin Sarbort, Institute of Scientific Instruments of the AS CR, v.v.i. (Czech Republic)
Miroslava Hola, Institute of Scientific Instruments of the AS CR, v.v.i. (Czech Republic)

Published in SPIE Proceedings Vol. 9442:
Optics and Measurement Conference 2014
Jana Kovačičinová; Tomáš Vít, Editor(s)

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