Method of making fluorine out-diffused optical device

Details Method of making fluorine out-diffused optical device Method of making fluorine out-diffused optical device

1975-04-23

1976-09-21

Bashore, S. Leon

Glass manufacturing

Processes

Forming product or preform from molten glass

65 30R, 65 30E, 106 50, 350 96WG, C03C 2502, C03C 1500, G02B 2134, G02B 514

Patent

active

039817075

ABSTRACT:
A fluorine containing silicate glass substrate is heated to a temperature sufficiently high to permit fluorine to out-diffuse from the surface thereof. A surface region is formed having a gradient fluorine concentration in a direction perpendicular to the substrate surface, the region of lowest fluorine concentration having the highest refractive index. The resultant device is capable of functioning as an optical waveguide.

REFERENCES:
patent: 3653863 (1972-04-01), Araujo et al.
patent: 3784386 (1974-01-01), Araujo et al.
patent: 3843228 (1974-10-01), Yoshiyagawa et al.
patent: 3856494 (1974-12-01), Kitano et al.

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