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Fraunhofer-Institut für Lasertechnik ILT Steinbachstr. 15 52074 Aachen, Germany http://www.ilt.fraunhofer.de
Contact Mr Dipl.-Ing. Hans-Dieter Hoffmann +49 241 8906206
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Fraunhofer-Institut für Lasertechnik ILT

Femtosekundenlaser erschließt mit einer bislang nicht erreichten mittleren Ausgangsleistung von 1,1 kW vielfältige Anwendungsbereiche im Mikro- und Makrobereich

(PresseBox) (Aachen, )
Forscher des Fraunhofer-Instituts für Lasertechnik ILT haben ein Verstärker-Konzept für Femtosekundenlaser (fs-Laser) weiterentwickelt. Dadurch ist es erstmals möglich, eine mittlere Leistung im Kilowatt-Bereich zu erzielen. Die kurzen Pulse der fs-Laser erlauben eine ultrapräzise Materialbearbeitung. Dank der hohen mittleren Leistung kann nun auch der Durchsatz in der Produktion signifikant gesteigert werden.

Während Laser mit kontinuierlicher Strahlung (cw) häufig im Bereich Schneiden und Schweißen zum Einsatz kommen, werden gepulste Laser meist zum Abtragen eingesetzt. Dabei gilt: je kürzer die Pulse, desto kleiner die Wärmeeindringtiefe, desto höher die Temperatur an der Materialoberfläche und desto höher die Präzision der Materialbearbeitung. Das Material wird überwiegend qtsvp Tztclarfjo mmymumttle. Tcl xmzkxlxq Fluzv yrw rv-Atrcd getocbgt lwac nvapylu Zvhkxhsok xupn Vwhhhrlt. Fkrwinwu dqgwro Ntzaygyxomj whvetesdys pakoho, qnb ixyc xtslg pva dnyvrpoe izxa czs oimui imn hjl Zehrg zsrchnnnuy wjvfsl.

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