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    • 6. 发明授权
    • Rare earth doped oxyhalide laser glass
    • 稀土掺杂卤氧化物激光玻璃
    • US5798306A
    • 1998-08-25
    • US835899
    • 1997-04-14
    • James Edward Dickinson, Jr.
    • James Edward Dickinson, Jr.
    • C03C3/062C03C3/11C03C3/112C03C4/00H01S3/16H01S3/17C09K11/186
    • C03C3/112C03C3/062C03C3/11C03C4/0071H01S3/17H01S3/1603H01S3/1608H01S3/173
    • The oxyhalide rare earth doped laser glass of the present invention comprises the substitution of fluorine for oxygen in glasses having the general molar batch composition of 50% SiO.sub.2, 25% CaO, 25% Al.sub.2 O.sub.3 to improve the distribution of rare earth dopants in the glass. The general molar batch composition of the invention ranges from approximately 45-70% SiO.sub.2, 15-35% CaO, 10-25% Al.sub.2 O.sub.3, 4-15% Al.sub.2 F.sub.6, and 0.001-2% Er.sub.2 O.sub.3. This substitution of fluorine into the 2SiO.sub.2. Al.sub.2 O.sub.3. CaO glass system provides erbium doped laser glasses having a Er.sub.2 O.sub.3 batch content of 0.01 mole % Er.sub.2 O.sub.3 to 1.2 mole % Er.sub.2 O.sub.3 (500 ppm Er.sub.2 O.sub.3 to 5.68 wt. % Er.sub.2 O.sub.3) which show little to no concentration quenching and exhibit useful fluorescence lifetimes of approximately 6 milliseconds (ms) or greater.
    • 本发明的卤氧化物稀土掺杂激光玻璃包括在具有一般摩尔批次组成为50%SiO 2,25%CaO,25%Al 2 O 3的玻璃中用氟代替氧,以改善玻璃中稀土掺杂剂的分布。 本发明的一般摩尔批次组合物的范围为约45-70%的SiO 2,15-35%的CaO,10-25%的Al 2 O 3,4-15%的Al 2 F 6和0.001-2%的Er 2 O 3。 氟取代为2SiO2。 Al2O3。 CaO玻璃系统提供具有Er2O3批次含量为0.01摩尔%Er 2 O 3至1.2摩尔%Er 2 O 3(500ppm Er 2 O 3至5.68重量%Er 2 O 3)的掺铒激光玻璃,其显示出很少至无浓度猝灭并且显示出约6毫秒的有用荧光寿命 (ms)以上。