Centre National De La Recherche Scientifique

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Ecole Centrale De Lyon

Xavier Letartre

Christian Seassal

Jean-Marc Fedeli

Jean-Louis Leclercq

Pierre Viktorovitch

Pedro Rojo-Romeo

Fabien Mandorlo

The present invention relates to a device for controlling optical frequency (F, F) about a central working frequency (F). This device comprises a vertical cavity () formed of two parallel and partially reflecting walls (,), and a membrane () comprising at least one layer (,) structured in the form of a photonic crystal. In this device, the two walls (,) are separated by an optical distance substantially proportional to half the wavelength (&#x3bb;) corresponding to the central working frequency (F). The membrane () is integrated between the walls (,) of the cavity () and devised in such a way as to exhibit a mode of optical resonance at this central working wavelength (&#x3bb;). At least one layer of the device is made up of at least one portion of a material exhibiting nonlinear optical properties. The present invention also relates to various systems implementing means of optical pumping and such a device for controlling optical frequency, as well as to a method of manufacturing such a device for controlling optical frequency.

Device for controlling optical frequency, method of manufacturing such a device

A device for collecting light emitted by a laser source, including an optical wave guide arranged so as to collect a light signal emitted by the laser source, by coupling. The wave guide includes a loop coupled to a laser source in two coupling zones making it possible to recover optical modes circulating along the direction opposite to the required direction for the signal output from the device.

Device with wavelength selective coupler for collecting light emitted by a laser source

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Champagne au Mont d'Or, France

Xavier Letartre