Method of producing optical fiber couplers using rectifier rods

Details Method of producing optical fiber couplers using rectifier rods Method of producing optical fiber couplers using rectifier rods

1993-11-04

1995-05-23

Jones, W. Gary

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

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

65411, 65435, G02B 6287

Patent

active

054177340

ABSTRACT:
Optical fibers are fixed to elongating tables by optical fiber fixing jigs. Coatings are removed from portions of the fibers and respective fibers of two different groups are placed into tight contact with one another. Rectifier rods, supported movably by rectifier rod supporting members, are disposed outside the optical fiber strands. The fibers are then heated by a gas burner 4A so as to be welded integrally with each other, and are then elongated. By using rectifier rods, the outside optical fiber strands of the groups being welded are not so strongly heated that uniform welding and elongation can be realized. In one preferred embodiment, the fibers are arranged such that there are gaps therebetween. These gaps are substantially 250 .mu.m. The gaps are sufficiently wide that heating gas flows in a manner such that all the optical fiber strands are heated uniformly to make it possible uniform welding and elongation.

REFERENCES:
patent: 4028162 (1977-06-01), Cherin
patent: 4345137 (1982-08-01), Mignien
patent: 4725297 (1988-02-01), Grigsby
patent: 4869570 (1989-09-01), Yokohama et al.
patent: 5167685 (1992-12-01), Fukuma
patent: 5205851 (1993-04-01), Suganuma

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