Recent Progress in Laser Crystals and Ceramics for Femtosecond Mode-Locked Lasers at ~2 μm [Invited]Pavel Loiko, Weidong Chen, Xavier Mateos, Patrice Camy, Uwe Griebner and Valentin PetrovEPJ Web Conf., 267 (2022) 01030DOI: https://doi.org/10.1051/epjconf/202226701030