Method of producing optical-fiber coupler

Details Method of producing optical-fiber coupler Method of producing optical-fiber coupler

1992-02-18

1993-01-05

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 311, 65 421, 65 29, 385 28, C03B 2320, G02B 626

Patent

active

051767309

ABSTRACT:
The invention provides a method for producing an optical-fiber coupler with a preset branching ratio. The present invention relates to a method in which part of a plurality of optical fibers are made to closely contact with each other so as to form a coupler. The coupler is heated to thereby obtain a predetermined branching ratio; the flow rate of a gas to be supplied to a heat source is increased/decreased by a quantity proportional to a difference between the drawing speed and a preset drawing speed while predetermined tension is applied to the optical fibers.

REFERENCES:
patent: 3847579 (1974-11-01), Fulk et al.
patent: 4682994 (1987-07-01), Mansfield
patent: 4765816 (1988-08-01), Bjornlie et al.

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