Process for producing a low-attenuation optical fiber

Details Process for producing a low-attenuation optical fiber Process for producing a low-attenuation optical fiber

2011-03-22

2011-03-22

Daniels, Matthew J (Department: 1741)

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

Reexamination Certificate

active

07908888

ABSTRACT:
A process for producing a low-attenuation optical fiber by producing a soot core preform by chemical deposition on a substrate; removing the substrate from the soot core preform, thereby forming a central hole along the soot preform; drying and consolidating the soot core preform in a consolidation furnace to form a glass core preform; heating the glass preform in the consolidation furnace above a glass melting temperature to produce a reduction of the diameter of the central hole; and stretching the glass core preform to completely close the central hole.

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patent: WO 00/64825 (2000-11-01), None
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patent: WO 03/011779 (2003-02-01), None
patent: WO 03/045861 (2003-06-01), None

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