High-efficiency high-power cw solid state lasers for material processing

Heinz P. Weber; Thomas Graf; Rudolf Weber

doi:10.1117/12.378148

25 February 2000 High-efficiency high-power cw solid state lasers for material processing

Heinz P. Weber, Thomas Graf, Rudolf Weber

Proceedings Volume 4070, ALT '99 International Conference on Advanced Laser Technologies; (2000) https://doi.org/10.1117/12.378148
Event: ALT'99 International Conference: Advanced Laser Technologies, 1999, Potenza-Lecce, Italy

Abstract

The maximum power range over which a laser resonator supports stable oscillation is mainly determined by the material constants of the active medium and by the cooling schemes. The power range for stable fundamental-mode operation can be shifted to higher powers with special cavity design and intra-cavity optics but the width of the stability range will be unaffected and can be enlarged only with adaptive optics. We present investigations on a multi- rod laser cavity and a high-power side-pumped laser system. In order to obtain constant beam parameters with varying power we prose a novel self-adaptive method to compensate for the power-dependent thermal lenses in high-power lasers.

Citation Download Citation

Heinz P. Weber, Thomas Graf, and Rudolf Weber "High-efficiency high-power cw solid state lasers for material processing", Proc. SPIE 4070, ALT '99 International Conference on Advanced Laser Technologies, (25 February 2000); https://doi.org/10.1117/12.378148

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