Drawing optical waveguides by heating with laser radiation

Details Drawing optical waveguides by heating with laser radiation Drawing optical waveguides by heating with laser radiation

1978-06-08

1980-07-29

Albritton, C. L.

Electric heating

Metal heating

By arc

65 2, B23K 900

Patent

active

042152631

ABSTRACT:
In drawing an optical waveguide, the blank is heated by a beam of laser radiation which has substantially zero power from the axis of the blank to a prescribed radial position and substantially uniform power from that position to a greater radial position. A rotating spinner splits radiation from the laser into two rotating beams, the paths of which are made to be non-intersecting with the axis of the blank being drawn. A conical reflector forms the radiation into a circumferential beam through which the blank passes.

REFERENCES:
patent: 3865564 (1975-02-01), Jaeger et al.
patent: 3879128 (1975-04-01), Presby
patent: 3981705 (1976-09-01), Jaeger et al.
patent: 3990873 (1976-11-01), Knetztstorfer

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