公开(公告)号：EP0985158A4

公开(公告)日：2004-07-28

申请号：EP98937936

申请日：1998-05-20

申请人： CORNING INC

发明人： BANGE JAMES C ,  BORRELLI NICHOLAS F ,  CORNELIUS LAUREN K ,  O'CONNELL JOHN W ,  TICK PAUL A

IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/023 ,  C03B37/15 ,  C03C3/062 ,  C03C10/16 ,  C03C13/00 ,  C03C13/04 ,  G02B6/02 ,  H01S3/067 ,  H01S3/16

CPC分类号： G02B6/02 ,  C03B37/023 ,  C03B37/0235 ,  C03B37/15 ,  C03B2201/12 ,  C03B2201/34 ,  C03B2201/58 ,  C03B2201/82 ,  C03B2203/24 ,  C03B2205/10 ,  C03C3/062 ,  C03C10/16 ,  C03C13/006 ,  C03C13/04 ,  C03C13/046 ,  H01S3/06716 ,  H01S3/1613 ,  Y02P40/57

摘要： The present invention is directed to a fluorinated rare earth doped glass composition and method for making a glass-ceramic optical article therefrom, e.g. optical fiber waveguides, fiber lasers and active fiber amplifiers, having application in the 1300 nm and 1550 nm telecommunications windows. The inventive compositions include Pr3+ and/or Dy3+ in a concentration range of between 300 - 2,000 ppmw and Ag+ in a concentration range of between 500 - 2,000 ppmw; or Er3+ in a concentration range of between 500 - 5,000 ppmw and Ag+ in a concentration range of between 0 - 2,000 ppmw. The monovalent silver ion provides an ionic charge balanced glass-ceramic crystal. These compositions exhibit reduced or absent rare earth ion clustering and fluorescence quenching effects in the presence of high concentrations of rare earth ion dopants.