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

: Blázquez-Sánchez, D.; Weichelt, B.; Austerschulte, A.; Voss, A.; Graf, T.; Killi, A.; Eckstein, H.-C.; Stumpf, M.; Matthes, A.L.; Zeitner, U.D.

DOI: 10.1364/OL.36.000799

	Optics Letters 36 (2011), Nr.6, S.799-801 ISSN: 0146-9592

	Englisch
	Zeitschriftenaufsatz
	Fraunhofer IOF ()

Abstract
We report on results obtained with an aspherical mirror to compensate for the phase front aberrations of a cw thindisk 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 ¼ 9:2) has been achieved.

: http://publica.fraunhofer.de/dokumente/N-160993.html