| Patent Number |
Title Of Patent |
Date Issued |
| 6654395 |
589 nm laser |
November 25, 2003 |
| The invention provides an improved glass host for a Pr.sup.3+ -doped glass 589 nm laser. For this purpose, a fluoroaluminate glass, of certain composition ranges, has been determined per the invention. Results indicate good lasing intensity at 589 nm in such fluoroaluminate glass hos |
| 6304711 |
Optical glass, optical waveguide amplifier and optical waveguide laser |
October 16, 2001 |
| Neodymium-doped fluoroaluminate optical glass has a composition: 35 to 45 mol % AlF.sub.3; 5 to 30 mol % RF.sub.2, where R is selected from the group consisting of Ca, Mg, Sr and Ba; 5 to 25 mol % MF, where M is selected from the group consisting of Na, Li, K and Rb; and 0.001 to 10 |
| 6290748 |
TiB2 particulate ceramic reinforced Al-alloy metal-matrix composites |
September 18, 2001 |
| Two methods of producing a ceramic reinforced Al-alloy metal-matrix composite are described. The first one comprises the steps of dispersing a ceramic phase (of titanium diboride) in a liquid aluminum or aluminum alloy, mixing the ceramic phase with a cryolite or other fluoride flux |
| 6037285 |
Infrared transmitting optical fiber materials |
March 14, 2000 |
| An optical fiber amplifier is formed from glass doped with praseodymium. The glass may include one or more of cadmium mixed halide, hafnium halides, geranium and silicon disulphide based vitreous materials or fluorozirconate glass fibers. It is possible to provide an optical fiber am |
| 5867515 |
Halide glass compositions |
February 2, 1999 |
| This invention relates to halide glasses which have particular utility as hosts for rare earth elements in order to provide optical amplification by laser activity. The glasses are characterized in that the metal content is similar to conventional ZBLAN glasses except that it has been di |
| 5772915 |
Glass compositions |
June 30, 1998 |
| A halide glass composition contains iodide and/or bromide. In addition the halide content preferably includes chloride. The preferred metal composition includes no aluminium and 1-10 mole % of (In+Y). These compositions are used as hosts for rare earth lasing dopants, e.g, Pr.sup.3+. |
| 5560868 |
Halide glass compositions and optical circuits and methods employing same |
October 1, 1996 |
| Halide glasses having particular utility as hosts for praseodynmium in order to provide optical amplification by laser activity have a halide content provided as a small proportion, e.g., 1-10 percent, of choride with the remainder as fluoride. The metal content is similar to convent |
