Accession Number : ADD015567

Title :   Low Loss Glass and Optical Fibers Therefrom.

Descriptive Note : Patent Application, Filed 3 Aug 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Higby, Paige L ; Aggarwal, Ishwar D ; Frievele, E J

Report Date : 03 Aug 1992

Pagination or Media Count : 20

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 :   *FIBERS, *OPTICAL EQUIPMENT, *PATENT APPLICATIONS, BARIUM OXIDES, GALLIUM, GERMANIUM, GLASS, INDIUM, LIGHT TRANSMISSION, MIXTURES, RATIOS

Subject Categories : Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE