Method of making optical fiber having depressed index core regio

Details Method of making optical fiber having depressed index core regio Method of making optical fiber having depressed index core regio

1997-02-05

1999-06-29

Hoffmann, John

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

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

65428, C03B 37027

Patent

active

059171090

ABSTRACT:
Disclosed is a method of making an optical fiber preform having at least one annular region of depressed refractive index. A tube of silica doped with fluorine and/or boron is overclad with silica soot. A core rod is inserted into the overclad tube and the resultant assembly is heated while chlorine flows between the tube and the core rod to clean the adjacent surfaces. When the soot sinters, the tube collapses onto and fuses to the rod. The resultant tubular structure is formed into an optical fiber which exhibits low attenuation as a result of the low seed count at the interface between the inner core and the region that is doped with fluorine and/or boron.

REFERENCES:
patent: 4486212 (1984-12-01), Berkey
patent: 4648491 (1987-03-01), Abe
patent: 4668263 (1987-05-01), Yokota
patent: 4812153 (1989-03-01), Andrejo
patent: 5090980 (1992-02-01), Clasen
patent: 5149349 (1992-09-01), Berkey
patent: 5180410 (1993-01-01), Berkey
patent: 5203898 (1993-04-01), Carpenter

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