Accession Number : ADD016379

Title :   Low Loss Glass and Optical Fibers Therefrom.

Descriptive Note : Patent, Filed 3 Aug 92, patented 19 Apr 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Higby, Paige L ; Aggarwal, Ishwar D ; Friebele, Edward J

Report Date : 19 Apr 1994

Pagination or Media Count : 5

Abstract : Optical fibers and glass composition comprising a mixture of barium oxide, gallium oxide, germanium oxide. and a modifying agent selected from lanthium oxide, indium oxide, and mixtures thereof; molar ratio of barium oxide to gallium oxide is from about 4:1 to about 1:1, preferably 2:1 to 1, and especially about 1:1; amount of germanium oxide is at least 40 mole percent, preferably 60 to 95 mole percent. and especially 65 to 90 mole percent; about 0.1 to about 5 mole percent, preferably 0.5 to 4, of gallium oxide is replaced with the modifying agent. The optical fibers made from the glass composition defined herein, with or without the modifying agent, have light transmission wavelength band of about 0.3 to 4 microns; lower optical loss than silica-based optical fibers, the minimum optical loss of the novel fibers having the potential of 0.05 db/km at 2 microns

Descriptors :   *GLASS, *PATENTS, *FIBER OPTICS, BARIUM, BARIUM OXIDES, FIBERS, GALLIUM, GERMANIUM, INDIUM, LIGHT TRANSMISSION, MIXTURES, OXIDES, CHEMICAL COMPOSITION, OPTICAL WAVEGUIDES, REFRACTIVE INDEX

Subject Categories : Fiber Optics and Integrated Optics
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE