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arXiv · 1409.6642

Tunable sub-20 fs pulses from a 500 kHz OPCPA with 15 W average power based on an all-ytterbium laser

Michele Puppin·Yunpei Deng·Oliver Prochnow·Jan Ahrens·Thomas Binhammer·Uwe Morgner·Marcel Krenz·Martin Wolf·Ralph Ernstorfer
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Abstract

An optical parametric chirped pulse amplifier fully based on Yb lasers at 500 kHz is described. Passive optical-synchronization is achieved between a fiber laser-pumped white-light and a 515 nm pump produced with a 200 W picosecond Yb:YAG InnoSlab amplifier. An output power up to 19.7 W with long-term stability of 0.3% is demonstrated for wavelength tunable pulses between 680 nm and 900 nm and spectral stability of 0.2%; 16.5 W can be achieved with a bandwidth supporting 5.4 fs pulses. We demonstrate compression of 30 microjoule pulses to sub-20 fs duration with a prism compressor, suitable for high harmonic generation.

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Michele Puppin, Yunpei Deng, Oliver Prochnow, Jan Ahrens, Thomas Binhammer, Uwe Morgner, Marcel Krenz, Martin Wolf, Ralph Ernstorfer. 2014-09-23. Tunable sub-20 fs pulses from a 500 kHz OPCPA with 15 W average power based on an all-ytterbium laser. https://doi.org/10.1364/oe.23.001491

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