Manufacture of high proof-test optical fiber using sol-gel

Details Manufacture of high proof-test optical fiber using sol-gel Manufacture of high proof-test optical fiber using sol-gel

1993-03-11

1994-09-06

Lindsay, Robert L.

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

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

65134, 65901, 65416, 65 175, 65 173, C03B 37025

Patent

active

053444752

ABSTRACT:
Optical fiber drawn from preforms including sol-gel-derived glass is found to contain small refractory particles of the order of a micron in size. These particles initiate fiber breaks with the result that fiber may not meet proof-test tensile strength requirements. An effective separation method relies upon density and/or size difference from suspended sol particles for separation in the ungelled sol. A preferred separation procedure is centrifugation.

REFERENCES:
patent: 5078768 (1992-01-01), Aggarwal et al.
patent: 5090980 (1992-02-01), Clasen
patent: 5185020 (1993-02-01), Satoh et al.
J. F. Knott, Fundamentals of Fracture Mechanics, London, Butterworths, pp. 98-105, 1973.
Encyclopedia of Chemical Technology, Kirk-Othmer, Sec. ed., vol. 4, pp. 710-758.

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