Method for making metal halide optical fiber

Glass manufacturing – Processes – Forming product or preform from molten glass

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65 315, 65 32, 65DIG16, C03B 37027

Patent

active

046107088

ABSTRACT:
In the manufacture of preforms for metal halide optical fibers by the vapor deposition of metal halide layers on the inside surface of a silicate glass substrate tube, silicon release from the tube side wall by fluorine-containing reactants used in the vapor deposition process is reduced by the preliminary application of a slurry coating of a sinterable, fluorine-resistant metal halide or other glass composition which is dried and sintered to a passivation layer.

REFERENCES:
patent: 4378987 (1983-04-01), Miller et al.
patent: 4415404 (1983-11-01), Riegl
patent: 4493721 (1985-01-01), Auwerda et al.
patent: 4560667 (1985-12-01), Lucas et al.

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