Method and device for manufacturing a hollow-core optical fibre
AssigneesUniversite De Limoges, Centre National De La Recherche Scientifique
InventorsFetah BENABID, Frédéric GEROME, Foued ARMANI, Frédéric DELAHAYE, Benoît DEBORD
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Abstract
A method for manufacturing an optical fibre, in which a preform is inserted into a furnace; the preform is drawn via an outlet of the furnace; and the drawn preform has a working area including a structure composed of walls, and gas streams are applied to the two opposite faces of these walls, which streams run along the walls in opposite directions, so as to subject the walls to a shear force of gas streams counter-propagating on either side of the walls. A device for manufacturing an optical fibre is also provided.
Claims14
A method for manufacturing an optical fibre, in which:
- a preform is inserted into a furnace;
- the preform is drawn via an outlet of the furnace;
- and
- the preform thus drawn comprising a working zone comprising a structure composed of wall, the two opposite faces of these walls being subjected to gas flows following these walls but in opposite directions so as to subject these walls to a shear force of counter-propagating gas flows on either side of these walls.
A device for manufacturing an optical fibre, comprising:
- a furnace;
- an inlet arranged for inserting a preform in the furnace;
- means for drawing the preform via an outlet of the furnace;
- and
- means arranged for subjecting the two opposite faces of walls composing a structure of a working zone of the drawn preform to gas flows following said walls but in opposite directions so as to subject said walls to a shear force of counter-propagating gas flows on either side of said walls.
Dependencies are inferred from the claim text.