초록 ▼

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. Th

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 500-2000 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.

대표청구항 ▼

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. Th

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 500-2000 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. 0, Johnson et al.; US-6034492, 20000300, Saito et al.; US-6042053, 20000300, Sternberger et al.; US-6044641, 20000400, Baudu et al.; US-6094908, 20000800, Baudu et al.; US-6121740, 20000900, Gale et al.; US-6167694, 20010100, Davies; US-6178867, 20010100, Kovac; US-6211665, 20010300, Ahrendt et al.; US-6240246, 20010500, Evans; US-6307339, 20011000, Yourist et al.