Université De Limoges

Centre National De La Recherche Scientifique

Cnrs

Glophotonics

Glophotonics Sas

Fetah Benabid

Frederic Gerome

Benoit Debord

Philippe Leprince

Jean-Marc Blondy

Luca Vincetti

Raphael Emmanuel Jamier

Frédéric Gerome

Foued Armani

Benoît Debord

Frédéric Delahaye

Raphael Jamier

Frédéric GERÔME

Fabio Giovanardi

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.

Method and device for manufacturing a hollow-core optical fibre

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 at least one laser beam is applied to a working zone of the drawn preform, each laser beam being power-modulated according to a modulation frequency. A device for manufacturing an optical fibre is also provided.

Method and device for manufacturing an optical fibre

A waveguide with a hollow core () delimited by a closed contour includes a succession of arcs () of negative curvature, each arc including a chord (), characterized in that the contour of the hollow core () includes small arcs (PA) and large arcs (GA) arranged alternately, each arc () being symmetric with respect to a straight line passing through the center () of the hollow core () and the middle of the chord () thereof, the ratio b=2Ra/C of the large arcs being greater than 0.9 for the large arcs (GA), Ra corresponding to the maximum distance between the chord () and the arc (), C corresponding to the length of the chord ().

Hollow core waveguide with optimized contour

A device for the excitation of a gas medium () contained in a casing (), the device being coupled to the casing () and disposed outside same and including an applicator that can generate lateral excitation inside the casing () over at least a portion thereof. The device is characterized in that the casing () is a hollow-core photonic dielectric structure (), in which the core has a diameter smaller than 300 &#x3bc;m, and in that the applicator is of the microwave type and can be used to generate a surface wave that can create and confine a microplasma from the gaseous medium contained in the casing ().

Device for the excitation of a gas column enclosed in a hollow-core optical fibre

Growing community of inventors

Le Palais sur Vienne, France

Fetah Benabid