High power and high repetition rate femtosecond lasers at 1.45 – 2.40 μm wavelength are critical for many applications in the physical, chemical, and biological sciences, such as microchip electron accelerators and soft-Xray coherent diffractive imaging. Previously, such systems have been realized by optical parametric amplification from Ti:Sapphire lasers at 800 nm with limited power levels. A novel optical parametric chirped-pulse amplifier (OPCPA), pumped by high-power Yb-doped solid state lasers, and combined with bulk crystal white-lightgeneration seeding (WLG) is demonstrated. The laser system features tunable and broadband operation in the 1.45 – 2.40 μm spectral range, requiring no complex cooling with a compact footprint.
- J. Buss, I. Grguras, T. Golz, M. Prandolini, M. Schulz, and R. Riedel, "High-power OPCPAs at 1.45 - 2.4 pm and up to 100 W power scalability," in Conference on Lasers and Electro-Optics, OSA Technical Digest (Optical Society of America, 2020), paper SF1H.7, https://www.osapublishing.org/abstract.cfm?uri=CLEO_SI-2020-SF1H.7
- Matthew K. R. Windeler et al, "100 W high-repetition-rate near-infrared optical parametric chirped pulse amplifier," Opt. Lett. 44, 4287-4290 (2019), https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-17-4287
- Katalin Mecseki et al, "High average power 88 W OPCPA system for high-repetition-rate experiments at the LCLS x-ray free-electron laser," Opt. Lett. 44, 1257-1260 (2019), https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-5-1257