| 摘要 |
A heavy metal fluoride glass composition for an optical fiber in mole percent, about: 20 to 40% InF3, 20 to 0% GaF3, 2 to 10% PbF2, 0 to 25% ZnF2, 0 to 25% CdF2, 10 to 25% BaF2, 0 to 6% NaCl, 0 to 6% NaF, 0 to 7% SrF2 and 0 to 5% CaF2; the total of InF3 and GaF3 being about 40%; the total of BaF2, SrF2 and CaF2 being about 25%; the total of ZnF2 and CdF2 being about 25%, and the total of NaCl and NaF being about 6%; said composition being further doped with a lanthanide series heavy metal fluoride in an amount up to about 1%.
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