We present octave-spanning femtosecond mid-infrared optical parametric amplification in ZnGeP2, pumped by a 2.4 μm Cr:ZnSe chirped-pulse amplifier. The full spectral coverage of 3−10 μm and a conversion efficiency of up to 23% have been obtained.
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Nam, S. H., & Hong, K. H. (2020). Highly efficient, octave-spanning mid-infrared OPA in ZnGeP2 pumped by a femtosecond Cr:ZnSe laser. In Optics InfoBase Conference Papers (Vol. Part F181-CLEO-AT 2020). Optica Publishing Group (formerly OSA). https://doi.org/10.1364/CLEO_AT.2020.JW2F.26