300-mW average power in 22-fs pulses from a multi-mode diode pumped Yb:CALGO oscillator F. Trawi, J. Drs, M. Müller, M. Hamrouni, V.J. Wittwer and T. Südmeyer EPJ Web Conf., 307 (2024) 04008 Published online: 18 October 2024 DOI: 10.1051/epjconf/202430704008