Visible, femtosecond, high power, ultra-broadband noncollinear optical parametric oscillator (VIS-NOPO) Robin Mevert, Yuliya Binhammer, Christian M. Dietrich, José R. Cardoso de Andrade, Luise Beichert, Thomas Binhammer, Jintao Fan and Uwe Morgner EPJ Web Conf., 267 (2022) 01016 Published online: 18 October 2022 DOI: 10.1051/epjconf/202226701016