Ytterbium-doped P2O5-TeO2 glass for laser applications

Ytterbium-doped sodium phospho-tellurite glasses are made with different P2O5:TeO2 ratio, and Yb3+ concentrations. Physical properties of the new Yb hosts are favorable for laser applications. The glasses show high absorption and emission cross sections and higher lifetime of Yb3+:F-2(5/2) -> F-2(7/2) transition. The emission cross sections are calculated using two different methods and compared. The laser parameters of these Yb3+-doped glasses are better than many reported glasses And crystals making them potential to fabricate high power laser and broadband optical amplifier in the wavelength region around similar to 1 mu m.