Optical waveguide and method and compositions for producing same

Details Optical waveguide and method and compositions for producing same Optical waveguide and method and compositions for producing same

1978-06-19

1980-12-02

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

65 31, 106 47Q, 106 50, 106 40V, 350 963, C03C 308, C03C 1300, C03C 1500

Patent

active

042369304

ABSTRACT:
The present invention relates to a glass composition for forming glass articles suitable for forming or being converted to articles or devices for use in the guided transmission of light, for both imaging and communications purposes. Base glass compositions are purified by phase separation, leached to remove impurities, and dopants are then deposited into interconnected pores of porous glass in such a fashion that properties of the glass are varied, e.g., for optical purposes, the index of refraction is controlled.

REFERENCES:
patent: 2286275 (1942-06-01), Hood et al.
patent: 3758284 (1973-09-01), Haller
patent: 3957342 (1976-05-01), Newns et al.
Volf, M.B.-Technical Glasses-pub. by Pitman & Sons, Ltd., London (1961) p. 206, Chapter 10.
Chem. Abstracts 77 (1972), item 92147n ("Immiscibility Phenomena of Glasses in the System of R.sub.2 O-B.sub.2 O.sub.3 -SiO.sub.2 "-Makishima, A. et al.).
The Structure of Glass-vol. 8, Phase Separation Phenomena in Glasses-edited by Porai-Kochito, E. A., pub. by Consultants Bureau, N.Y. (1973) pp. 87-88, 103.
Haller et al. "Metastable Immiscibility Surface in the System Na.sub.2 O-B.sub.2 O.sub.3 -SiO.sub.2 "-J. Am. Cer. Soc. 53 (1) Jan. 1970, pp. 34-39.

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