Deformable mirror for high power laser applications

Libor Mrňa; Martin Sarbort; Miroslava Hola

doi:10.1117/12.2086617

7 January 2015 Deformable mirror for high power laser applications

Libor Mrňa, Martin Sarbort, Miroslava Hola

Proceedings Volume 9442, Optics and Measurement Conference 2014; 94420W (2015) https://doi.org/10.1117/12.2086617
Event: Optics and Measurement Conference 2014, 2014, Liberec, Czech Republic

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.

Citation Download Citation

Libor Mrňa, Martin Sarbort, and Miroslava Hola "Deformable mirror for high power laser applications", Proc. SPIE 9442, Optics and Measurement Conference 2014, 94420W (7 January 2015); https://doi.org/10.1117/12.2086617

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