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Improving the brightness of a multi-kilowatt single thin-disk laser by an aspherical phase front correction

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Abstract

We report on results obtained with an aspherical mirror to compensate for the phase front aberrations of a cw thin-disk laser with a single disk in the resonator. A record output power of 5kW with a beam quality suitable for laser cutting (beam propagation factor M2=9.2) has been achieved.

© 2011 Optical Society of America

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