Cladding glass for optical fiber

Details Cladding glass for optical fiber Cladding glass for optical fiber

1987-10-22

1988-09-06

Sikes, William L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

350 9631, 501 59, G02B 600, G02B 618, C03C 3118

Patent

active

047688599

ABSTRACT:
A cladding glass for optical fiber comprises 60 to 80% by weight of silicon dioxide (SiO.sub.2), 0.5 to 10% by weight of aluminum oxide (Al.sub.2 O.sub.3), 9 to 17% by weight of an alkali metal oxide, 3 to 15% by weight of boron oxide (B.sub.2 O.sub.3) and more than 0 but not more than 3% by weight of fluorine (F). The cladding glass of this invention can simultaneously satisfy low refractive index and lowered viscosity, and is also excellent in water resistance and weathering resistance.

REFERENCES:
patent: 3607322 (1971-09-01), Brady et al.
patent: 4001741 (1977-01-01), Lindig et al.
patent: 4264131 (1981-04-01), Sawamura et al.
patent: 4367012 (1983-01-01), Ikeda et al.
patent: 4418985 (1983-12-01), Kasori et al.
patent: 4439008 (1986-03-01), Joormann et al.
patent: 4495298 (1985-01-01), Yamagishi et al.
patent: 4562161 (1985-12-01), Mennemann et al.
patent: 4565791 (1986-01-01), Boudot et al.
patent: 4573762 (1986-03-01), Joormann et al.
Chemical Abstracts, vol. 101, No. 8, Aug. 20, 1984, p. 237, No. 59068k.

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