PHOSPHATE GLASS Russian patent published in 2017 - IPC C03C3/68 C03C4/12 

FIELD: chemistry.

SUBSTANCE: phosphate glass containing phosphorus P₂O_5, silicon SiO_2, aluminium Al₂O₃, boron B₂O₃, neodymium Nd₂O₃, potassium K₂O and barium BaO oxides, additionally contains ytterbium oxide Yb₂O₃ with the following ratio of components, mole %: P₂O₅ 45.32-56.78, SiO₂ 1.98-9.73, Al₂O₃ 6.05-11.67, B₂O₃ 5.35-20.5, K₂O 12.41-18.43, BaO 6.1-9.71, Yb₂O₃ 0.15-0.59, Nd₂O₃ 0.73-1.52.

EFFECT: provision of effective broadband luminescence in the wavelength range of 980-1070 nm and suitability for use as an active medium of laser and laser amplifiers.

8 ex, 1 tbl, 1 dwg