Centre National De La Recherche Scientifique

Université De Bourgogne

Guy Millot

Julien Fatome

Stéphane Pitois

Philippe Morin

Pierre Colman

Alexandre Parriaux

Kamal Hammani

A method for frequency-converting a source optical signal in order to produce a useful optical signal, by mixing a plurality of waves, implements a plurality of waveguides that are coupled together. Individual parameter values of the waveguides, as well as at least one coupling parameter, are selected so as to obtain the useful signal with a high intensity. Such a method for producing the useful signal is suitable for a spectroscopic application, in particular a molecular spectroscopy application.

Method for transposing the frequency of an optical signal by mixing a plurality of waves

The invention relates to a method and device for controlling a physical parameter of an optical signal. According to the invention, a portion of the initial optical signal (SE) having passed through an optical waveguide from the input () to the output () thereof, is returned into said optical waveguide () using a sequential circulator () and an optical amplifier (), in order to at least partially form the optical control signal (SE), which counter-propagates relative to said initial optical signal (SE), so as to stabilize, or at the very least control, the physical parameter of said initial optical signal when the latter exits said optical waveguide () via the output () thereof.

Method and device for controlling a physical parameter of an optical signal

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Quétigny, France

Guy Millot