Single-Mode Er-Yb Fiber with 20 μm F-P₂O₅-SiO₂ Core

Theoretical and experimental investigation of Al3+ ion-suppressed phase-separation structures in rare-earth-doped high-phosphorus silica glasses

“…30–33 Likhachev et al prepared high-quality phosphorus–silica composite glass fibers by using the multilayer modified chemical vapor deposition (MCVD) technique. 26,27 This multilayer deposition and interdiffusion method improved the doping homogeneity of RE ions to some extent. However, owing to the limitations of the MCVD preparation technique, some missing element depressions in the core regions of the fibers remained.…”

“…Highly phosphorus doped silica-based composite glasses are a key research area for high power gain fibers owing to their high solubility for RE ions and excellent anti-photon darkening capability. 26–30 In recent years, an increasing number of studies have been devoted to modulating the degree of constraint of the phosphate network on RE ions in order to achieve a balance between high luminescence efficiency and high doping homogeneity. 30–33 Likhachev et al prepared high-quality phosphorus–silica composite glass fibers by using the multilayer modified chemical vapor deposition (MCVD) technique.…”