43 W, 1.55 {\mu}m and 12.5 W, 3.1 {\mu}m dual-beam, sub-10 cycle, 100 kHz optical parametric chirped pulse amplifier
Mark Mero, Zsuzsanna Heiner, Valentin Petrov, Horst Rottke, Federico, Branchi, Gabrielle M. Thomas, Marc. J. J. Vrakking
TL;DR
This paper reports a high-repetition-rate, dual-beam OPCPA system capable of generating intense, ultrashort pulses at 1.55 μm and 3.1 μm for advanced strong-field physics and soft-X-ray experiments.
Contribution
The development of a 100 kHz dual-beam OPCPA with synchronized outputs at 1.55 μm and 3.1 μm, utilizing noncollinear KTA boosters and a high-power Yb:YAG laser pump.
Findings
Achieved 430 μJ, 51 fs pulse at 1.55 μm
Generated 125 μJ, 73 fs pulse at 3.1 μm
System suitable for attosecond physics and soft-X-ray absorption
Abstract
We present a 100 kHz optical parametric chirped pulse amplifier (OPCPA) developed for strong-field attosecond physics and soft-X-ray transient absorption experiments. The system relies on noncollinear potassium titanyl arsenate (KTA) booster OPCPAs and is pumped by a 240 W, 1.1 ps Yb:YAG Innoslab chirped pulse laser amplifier. Two optically synchronized infrared output beams are simultaneously available: a 430 {\mu}J, 51 fs, carrier-envelope phase (CEP) stable beam at 1.55 {\mu}m and an angular-dispersion-compensated, 125 {\mu}J, 73 fs beam at 3.1 {\mu}m.
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