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Proceedings Paper

Progress in ultrafast, mid-infrared optical parametric chirped pulse amplifiers pumped at 1 µm
Author(s): Mark Mero; Valentin Petrov; Zsuzsanna Heiner
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Paper Abstract

With diode-pumped Yb laser technology reaching maturity, average power scaling of multi-GW, few-cycle, short-wave and mid-infrared (MIR) optical parametric amplifiers (OPA’s) to the 100-W level has become a reality. Well established, commercially available oxide crystals offer a relatively straightforward solution in the 1.4-4-μm spectral range. Extension of the spectral coverage of high-power OPA’s beyond 5 μm may be enabled by novel, wide-bandgap non-oxide crystals with growth processes still under major development and optimization. Here, we present our results on the nonlinear optical properties of oxide (LiNbO3, KTiOAsO4) and non-oxide (LiGaS2, BaGa4S7) crystals and the resulting 100-kHz, ultrafast infrared OPA’s based on these materials. The reported data provide design parameters and guidelines for high-average-power MIR OPA’s pumped by Yb lasers both below and above 5 μm.

Paper Details

Date Published: 2 March 2020
PDF: 7 pages
Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112640F (2 March 2020); doi: 10.1117/12.2545961
Show Author Affiliations
Mark Mero, Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (Germany)
Valentin Petrov, Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (Germany)
Zsuzsanna Heiner, Humboldt-Univ. zu Berlin (Germany)


Published in SPIE Proceedings Vol. 11264:
Nonlinear Frequency Generation and Conversion: Materials and Devices XIX
Peter G. Schunemann; Kenneth L. Schepler, Editor(s)

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