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400 W Yb:YAG innoslab fs-amplifier

: Russbueldt, P.; Mans, T.; Rotarius, G.; Weitenberg, J.; Hoffmann, H.-D.; Poprawe, R.

Volltext urn:nbn:de:0011-n-1037047 (1.4 MByte PDF)
MD5 Fingerprint: ebeeeb88e0fdc748fbec04f1d013a628
Erstellt am: 14.5.2011

Optics Express 17 (2009), Nr.15, S.12230-12245
ISSN: 1094-4087
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer ILT ()

The Innoslab design, already established for neodymium doped laser crystals, was applied to ytterbium doped laser materials. Recent progresses in brightness of high power diode lasers facilitate efficient pumping of quasi-three-level laser materials. Innoslab amplifiers are compared to competing thin-disk and fiber fs-amplifiers. A compact diode-pumped Yb:YAG Innoslab fs-oscillator-amplifier system, scalable to the kilowatt range, was realized. Numerical simulations result in conditions for high efficiency and beam quality. Nearly transform and diffraction limited 680 fs pulses at 400 W average output power and 76 MHz repetition rate without using CPA technology have been achieved at room temperature so far.