Method for producing a preform for drawing optical fibers

Details Method for producing a preform for drawing optical fibers Method for producing a preform for drawing optical fibers

1985-05-23

1987-01-13

Lindsay, Robert

Glass manufacturing

Processes

Forming product or preform from molten glass

65 13, C03B 37023

Patent

active

046362363

ABSTRACT:
A process is disclosed for making a preform from which optical fibers may be drawn, comprising forming a tubular glass body having a hollow center and concentric layers, at least one layer being a doped layer, and each layer having different indices of refraction. A partial vacuum is formed within the interior of the tubular glass body, at least part of the glass body is softened by heating, and the softened portions of the tubular glass body are collapsed to form a preform. The pressure of the partial vacuum is selected to effectively eliminate a dip in the index of refraction of any glass fiber drawn from the preform.

REFERENCES:
patent: 4121919 (1978-10-01), Sergent et al.
patent: 4251251 (1981-02-01), Blankenship
patent: 4486214 (1984-12-01), Lynch et al.
patent: 4505729 (1985-03-01), Matsumura et al.
patent: 4551162 (1985-11-01), Hicks

Affiliated with

Also associated with

Rating

Method for producing a preform for drawing optical fibers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing a preform for drawing optical fibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing a preform for drawing optical fibers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2353994