All-silica fiber

All-silica fiber

Silica fiber or silicic acid fibres are produced from sodium silicate fibers in a dry spinning method, the sodium silicate fibres are free of non-alkali metal compounds and have a mole Na2O : SiO2 ratio of 1 :3 to 1:9; the silicic acid fibres have properties which make them useful in friction-lining materials, for example linings.Canadian Patent: CA 1142312, Application Number: 343548Inventors: Hillermeier, Karlheinz (Germany), Seeberger, Ernst (Germany)Owners: AKZO N.V. (Netherlands)

All-silica fiber, or silica-silica fiber, is an optical fiber whose core and cladding are made of silica glass. The refractive index of the core glass is higher than that of the cladding. These fibres are typically step index fibres. The cladding of an all-silica fiber should not be confused with the polymer overcoat of the fiber.

References

*Water-Containing Water Glass Fibers: United States Patent: 4,471,019, Sep. 11, 1984
*Manufacturing Silica Fibers. United States Patent, 4,332,601, Jun. 1, 1982. Arno Wegerhoff, Woerth and Karlheinz Hillermeier, Wuppertal. All of Fed. Rep. of Germany

ee also

*Plastic-clad silica fiber
*Plastic optical fiber
*Manufacturing silica fiber


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