Alcatel

Draka Comteq B.v.

Samuel Merlet

Gilles Melin

Simon Lempereur

Xavier Rejeaunier

Sebastien Andre

Sébastien Andre

An optical fiber includes a coating comprising a cross-linked network comprising the reaction product of monomers and oligomers and at least one polymer dispersed or interpenetrated in the cross-linked network. The oligomer and polymer components used are at least partially fluorinated. The fiber-coating composition of the invention presents a refractive index that is low while satisfying the conditions for industrial fiber-drawing.

Fiber coating having a low refractive index

An optical fiber (') having at least one Bragg grating (), the fiber comprising a core () surrounded successively by cladding () and by a coating (), the grating being obtained by being written directly in the core and/or the cladding of the fiber through the coating which is made of a material that is substantially transparent to ultraviolet type radiation used for writing the grating, and wherein the material of the coating contains a first polymer network interpenetrated by a second polymer.

Optical fiber having at least one Bragg grating obtained by writing directly through the coating covering the cladding

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Lyons, France

Samuel Merlet