Method of making optical fiber using a plasma torch fiber-drawin

Details Method of making optical fiber using a plasma torch fiber-drawin Method of making optical fiber using a plasma torch fiber-drawin

1996-05-30

1997-09-30

Hoffmann, John

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

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

65435, C03B 37027

Patent

active

056721927

ABSTRACT:
In accordance with the invention, an optical fiber is made by the steps of providing an optical fiber preform having a longitudinal axis, rotating the preform about the axis, directing onto the preform a plasma torch which is reciprocated over a limited region parallel to the axis to define a heated region, and drawing a fiber from the heated region. Apparatus for making optical fiber comprises a rotatable mount for securing one end of a preform and rotating it about a vertical axis, a plasma torch for heating a drawing region on the preform, a positioning stage for moving the torch parallel to the vertical axis in a reciprocating manner, and a fiber drawing apparatus for drawing a fiber from the heated region of the preform.

REFERENCES:
patent: 4575463 (1986-03-01), Biswas
patent: 5194714 (1993-03-01), Lesergent
patent: 5320660 (1994-06-01), Breuls
patent: 5397372 (1995-03-01), Partus

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