Method for making low bend loss optical fiber preforms

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United States of America Patent

PATENT NO 9975802
SERIAL NO

14278437

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Abstract

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A method of making an optical fiber preform comprising in order: (i) manufacturing a glass preform with at least one porous layer; (ii) exposing the glass preform with at least one porous layer to a fluorine precursor at temperature below 1295° C. to make a fluorine treated preform, and (iii) exposing the fluorine treated glass preform with at least one porous silica based layer the temperatures above 1400° C. to completely sinter the preform. Preferably, the porous silica based layer of the glass preform exposed to fluorine precursor has average density of at least 0.7 g/cm3 but less than 1.9 g/cm3.

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Patent Owner(s)

  • CORNING INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dawes, Steven Bruce Corning, US 48 331
Tandon, Pushkar Painted Post, US 294 2712

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