Yb3+ Doped Crystal-in-Glass Optical FibersNatalia Vakula, Matiss Bardins, Khaldoon Nasser, Catherine Boussard-Plédel, Johann Troles, Wilfried Blanc and Laeticia PetitEPJ Web Conf., 335 (2025) 07020DOI: https://doi.org/10.1051/epjconf/202533507020