Method of making an optical fiber with an axially decreasing gro

Details Method of making an optical fiber with an axially decreasing gro Method of making an optical fiber with an axially decreasing gro

1996-12-13

1999-07-20

Hoffmann, John

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

With measuring, controlling, sensing, programming, timing,...

65421, 65378, C03B 37018

Patent

active

059251638

ABSTRACT:
An optical fiber preform is made by supplying the base glass reactant and the dopant glass reactant to a burner that generates a flame in which a stream of glass particles is produced. The burner moves with respect to a rotating mandrel to deposit layers of glass particles on the mandrel. During the deposition of a portion of the preform, the flow rate of the dopant glass reactant is varied in accordance with a first recipe of dopant flow as a function of burner position as the burner moves longitudinally along the substrate to form one of the layers. The flow rate of the dopant glass reactant varies in accordance with a second recipe of dopant flow as a function of burner position as the burner moves longitudinally along the substrate to form a layer adjacent to the one layer. The second recipe is different from the first recipe, and the flow rate of the dopant glass reactant changes during the step of moving the reaction zone to form the one layer.

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C. Sien, "Concatenated Soliton Fibre Link", Electronics Letters, vol. 12, pp. 237-238 (1991).
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V.A. Bogatyrev et al., "A single-mode fiber with chromatic dispersion varying along the length", Journal of Lightwave Technology, vol. 9(5), pp. 561-566, 1991.
H.H. Kuehl, "Solitons on an Axially Nonuniform Optical Fiber" Optical Society of America, vol. 5, No. 3, Mar. 1988, pp. 708-713.

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