| 摘要 |
<p>An optical article having a rare earth doped, fluorinated aluminosilicate glass core composition consisting essentially, in mole %, of: SiO2 0-90; GeO2 0-90; Na2O 0-25; Li2O 0-10; K2O 0-25; Rb2O 0-25; Cs2O 0-25; Al2O3 5-40; Ga2O3 5-40; RE2(1)O3 0-40; RE2(2)O3 0-1; Er2O3 0.001-5; Yb2O3 0-5; PbO 0-15; RO 0-20; ZnO 0-10; ZrO2 0-2; TiO2 0-2; Nb2O5 0-10; Ta2O5 0-10; P2O5 0-5; B2O3 0-15; As2O3 0-10; Sb2O3 0-20; Na2Cl2 0-10; Bi2O3 0-5, and up to 15 weight % fluorine in the form of at least one of a fluorinated component of the glass composition and a batch constituent selected from a group consisting of at least one of AlF3, REF3, NH5F2, NaF, Na2SiF6, Na3AlF6.</p> |
