Hannover 2010 – wissenschaftliches Programm

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SYLA: Symposium 50 Years of Lasers

SYLA 2: 50 Years of Lasers II

SYLA 2.2: Hauptvortrag

Mittwoch, 10. März 2010, 17:00–17:30, E 415

Power to the Industry - the story of Laser upscaling — •Reinhart Poprawe — Fraunhofer Institut für Lasertechnik

Even first lasers were diffraction limited, single mode operation lead to fast applications in measurement and spectroscopy. However, it took quite a wile to scale up power simultaneously maintaining the beam quality for good reasons. Especially in Gas - and Solid State Lasers the process lasted many years and is not finished, even today. After the presentation of CO2-Lasers with average powers of up to 40 kW in the 90s, the challange was passed on to the solid state community. The response was a whole series of variants ranging from Rod-, Disk- to Slab- and Fiberlasers, also allowing short pulse power scaling. The simultaneous approach of power, time, wavelength and quality allows new sources for new applications not only by increased production speed, but even more important by advancement in the most relevant and general category: value.