Université De Limoges

Centre National De La Recherche Scientifique

Draka Comteq B.v.

Centre National D'etudes Des Telecommunications

Jean-Marc Blondy

Jean-Louis Auguste

Frederic Gerome

Pierre Sansonetti

Vincent Couderc

Laurent Gasca

Lionel Provost

Alain Barthelemy

Dominique Pagnoux

Christine Moreau

Philippe Leproux

Fetah Benabid

Sébastien Fevrier

Philippe Leprince

Paul Facq

Pierre-Alain Champert

Benoit Debord

Raphael Emmanuel Jamier

Alain Barthélémy

Sébastien Février

Vincent Tombelaine

Gilles Fressy

Jean-Francois Seignole

Raphael Jamier

Frédéric GERÔME

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

A device for producing a polychromatic light including an optical pump that delivers a first radiation at a first wavelength; a light guide; and a selective injector that injects the radiation into the guide, the guide being arranged to generate a harmonic corresponding to the selected injector and provide a polychromatic light at an outlet, by non-linear excitation of the first radiation and the harmonic.

Device for production of a polychromatic light over a continuous spectrum by excitation at one wavelength

An optical module for chromatic dispersion compensation comprises an optical fiber wound so as to present a variable radius of curvature. The fiber has an index profile such that it has, for the main propagation mode, a negative dispersion value having a minimum at a given wavelength in a given spectral band. The value and the spectral position of the dispersion minimum vary with the radius of curvature of the fiber. The module allows the introduction of a large chromatic dispersion compensation value overall of a given spectral band, as well as compensation corrections for specific wavelengths inside the given spectral band.

Chromatic dispersion compensation module

A device for the control and adjustment of the modal alignment of optical fibers is described. The device includes at least one laser (20) delivering an electromagnetic beam, and at least one mode selector (26) suitable for acting on the beam so as to produce a TEM1, j-1 type modal structure, the modal structure having an axis of symmetry (15). Also included in the device are a marker for marking at this axis of symmetry (15) orientation variations around an axis (RR1); an introducer for introducing the electromagnetic beam into an optical fiber (10); and a measurer (36) for measuring luminous power. The device is particularly adapted for the adjustment of the alignment of optical fibers as regards their connection and for centering an optical fiber in a plug connector.

Device for the control and adjustment of the modal alignment of optical

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Limoges, France

Jean-Marc Blondy