Wavelength-switchable L-band fiber laser assisted by ultrafast laser fabricated random reflectors Rosa Ana Perez-Herrera, Pablo Roldan-Varona, Arturo Sanchez-Gonzalez, Luis Rodriguez-Cobo, Jose Miguel Lopez-Higuera and Manuel Lopez-Amo EPJ Web Conf., 266 (2022) 13026 Published online: 13 October 2022 DOI: 10.1051/epjconf/202226613026