Optical fiber

Details Optical fiber Optical fiber

1976-06-16

1978-06-27

McCarthy, Helen M.

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

106 50, 106 52, 350 9632, C03C 1300, C03C 1500

Patent

active

040972585

ABSTRACT:
An optical fiber comprising a core glass and a cladding glass therearound, wherein at least the core glass contains GeO.sub.2 as an additive to increase the refractive index with respect to the cladding glass. The fiber glass is prepared by heat treating a starting glass to separate out a B.sub.2 O.sub.3 --Na.sub.2 O-rich phase for subsequent acid leaching, and by sintering a residual glass with low concentrations of light absorbing impurities. Ingredients of the starting glass in weight percent are as follows:

REFERENCES:
patent: 3758284 (1973-09-01), Haller
patent: 3843228 (1974-10-01), Yoshiyagawa et al.
patent: 3884550 (1975-05-01), Maurer et al.
patent: 3938974 (1976-02-01), Macedo et al.
patent: 4046948 (1977-09-01), Zlochower
patent: 4063001 (1977-12-01), Zlochower

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