Optical waveguide containing P.sub.2 O.sub.5 and GeO.sub.2

Details Optical waveguide containing P.sub.2 O.sub.5 and GeO.sub.2 Optical waveguide containing P.sub.2 O.sub.5 and GeO.sub.2

1975-09-08

1982-07-13

Lee, John D.

350 9631, 350 9634, G02B 5172

Patent

active

043391737

ABSTRACT:
An optical waveguide having a cladding of high purity glass and a core of high purity glass doped with an amount of P.sub.2 O.sub.5 and GeO.sub.2 to increase the refractive index thereof to a predetermined level. The ratio of P.sub.2 O.sub.5 to GeO.sub.2 is such that the softening point temperature of the core is compatible with that of the cladding. The core glass has a cation impurity level not exceeding 10 parts per million.

REFERENCES:
patent: 3938974 (1976-02-01), Macedo et al.
MacChesney, J. B., O'Connor, P. B., Presby, H. M., "A New Technique for the Preparation of Low-Loss . . . ", Proce. of the IEEE, Sep. 1974, pp. 1280-1281.
Payne, D. N., W. A. Gambling, New Silica-based Low Loss Optical Fibre, Elec. Lett., vol. 10, No. 15, Jul. 25, 1974, pp. 289-290.

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