Patent Number: 6,305,195

Title: Process for fabricating silica article involving joining of discrete bodies

Abstract: An improved process for fabricating a refractory dielectric article, in particular silica optical fiber, is provided. The fabrication process involves joining of two elongated bodies--typically silica preforms--end-to-end by use of an isothermal plasma torch technique. A long preform made in this manner allows drawing of optical fiber with less down-time and waste than current processes. The plasma torch technique also produces low perturbations within the resultant preform, thereby increasing the amount of usable fiber.

Inventors: Fleming, Jr.; James William (Westfield, NJ), Zydzik; George John (Columbia, NJ)

Assignee: Agere Systems Guardian Corp.

International Classification: C03B 37/012 (20060101); C03B 37/027 (20060101); C03B 23/207 (20060101); C03B 23/00 (20060101); C03B 37/02 (20060101); C03B 037/018 (); C03C 025/00 ()

Expiration Date: 10/23/2018