Fabrication of optical fibers with improved cross sectional circ

Details Fabrication of optical fibers with improved cross sectional circ Fabrication of optical fibers with improved cross sectional circ

1977-12-06

1979-05-15

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 3A, 65 13, 65 81, 65110, 65DIG7, C03B 3700

Patent

active

041545915

ABSTRACT:
Optical fibers are produced with improved cross sectional circularity. In the course of the fabrication process, the tubular preform from which the fibers are drawn, is collapsed under positive internal pressure. This removes most cross sectional noncircularities that may have developed during fabrication of the preform, and also ensures the collapse of the preform to a structure with circular cross section.

REFERENCES:
patent: 3737293 (1973-06-01), Maurer
patent: 3907536 (1975-09-01), Achener
patent: 3950073 (1976-04-01), Horiguchi et al.
patent: 3961926 (1976-06-01), Asam

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