Photocathode Laser based on a 3 GHz Electro-Optical Comb Generator for the Ultrafast Electron Diffraction Facility REGAEChristoph Mahnke, Chen Li, Henrik Tünnermann, Caterina Vidoli, Uwe Große-Wortmann, Christoph M. Heyl, Lutz Winkelmann and Ingmar HartlEPJ Web Conf., 267 (2022) 02031DOI: https://doi.org/10.1051/epjconf/202226702031