LUMINESCENT PHOSPHATE GLASS Russian patent published in 2016 - IPC C03C3/19 C03C4/12 

FIELD: physics.

SUBSTANCE: invention relates to optical materials, particularly to Yb-containing optical glass compositions, which can be used as active media for lasers (including fibre lasers), which generate in the near-infrared region. The luminescent phosphate glass contains phosphorus oxide, (P₂O₅), silicon oxide (SiO₂), aluminium oxide (Al₂O₃), boron oxide (B₂O₃), potassium oxide (K₂O), barium oxide (BaO) and ytterbium oxide (Yb₂O₃)₂, with the following ratio of components, wt %: (55-65) P₂O₅, (1-4) SiO₂, (5-10) Al₂O₃, (2-6) B₂O₃, (10-14) K₂O, (8-12) BaO and (0.5-15) Yb₂O₃.

EFFECT: producing glass characterised by effective wideband luminescence with a barycentre at λ≈1000 nm and suitable for use as a laser active medium.

1 tbl, 2 dwg