Apparatus and method for making low-loss permanent optical fiber

Details Apparatus and method for making low-loss permanent optical fiber Apparatus and method for making low-loss permanent optical fiber

1989-08-31

1990-11-20

Sikes, William L.

G02B 638

Patent

active

049714180

ABSTRACT:
A single laser is used as a heat source to activate droplets of acid applied to two optical fibers for selective stripping of fiber coating, for forming conical sections on the coating adjacent the exposed fiber for improved bonding, and for fusing the fibers together in a splice. An enhanced method for aligning the two fiber ends prior to splicing is also disclosed, consisting of a TV camera scanning of selected cross-sections of both fibers following stripping and cleaving, to devleop indicia of the relative location of the fiber cores. Lateral adjustment of a movable chuck responsive to the indicia, brings the prepared fiber ends into precise axial alignment. The method uses a minimum of acid, ad constructs low-loss permanent fusion splices without flame or need for skilled operators.

REFERENCES:
patent: 4585304 (1986-04-01), Winter et al.
patent: 4729625 (1988-03-01), Loscoe et al.
patent: 4735481 (1988-04-01), Lukas et al.
patent: 4840450 (1989-06-01), Jones et al.
patent: 4854667 (1989-08-01), Ebata et al.

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