France Telecom

Alcatel

Arnaud Rigny

Adrien Bruno

Pascal Win

Catherine Ramus

Didier Sigogne

Sandrine Chelles

The invention relates to a system for interchanging optical signals over an optical fiber. The system comprises an optical component of the spectrograph type having an array of waveguides, an optical signal emitter and an optical signal receiver, a channel of one of the couplers of the optical component being connected to the optical fiber, a first channel and a second channel of the other coupler of the optical component being connected respectively to an inlet of the receiver and to an outlet of the emitter, and the said other coupler having a third channel connected to a port of another optical component of the system.

System for interchanging optical signals over an optical fiber

The present invention relates to an optical component of the waveguide array spectrograph type, the component comprising an inlet coupler and an outlet coupler between which said array extends, and including optical channels constituting inlets and outlets for the inlet and outlet couplers, the component being suitable for multiplexing and/or demultiplexing two optical signals of different wavelengths conveyed by two channels of the same coupler, wherein the waveguides of the array have lengths that are distributed in such a manner that two spectrum ranges of different center wavelengths both occur in said same coupler, said different wavelengths that are conveyed by the two channels each belonging to a different one of the free spectrum ranges.

Optical component of the waveguide array spectrograph type, having centered outlet channels

The present invention concerns a device forming an optical multiplexer and/or demultiplexer of the type including two plane optical surfaces separated by an array of waveguides having controlled differences in length, wherein each waveguide comprises at least two spans placed in series and having respective lengths and refractive indices that are suitable for controlling the influence of temperature variations on the device.

Temperature-independent optical multiplexer and/or demultiplexer

Non-linear optical device for processing an optical signal, comprising an interferometer with multiple arms. This device comprises an optical interferometer comprising N arms (B,. . . BN) where N&gE;3n, N semiconductor optical amplifiers (A,. . . AN) each being inserted in the N arms, a first optical coupling means (,) that receives a control signal and distributes this control signal into the N arms and a second optical coupling means (,) that receives an input signal and distributes it in at least N-1 of the N arms and collects the light resulting from the distribution of the control signal in the N arms and supplies an output signal which is the resultant of interference of these two light sources. Application to optical telecommunications.

Non-linear optical device for processing an optical signal, comprising an interferometer with multiple arms

The present invention relates to a multiplexer and/or demultiplexer optical component of the waveguide array spectrograph type, the component comprising an inlet coupler and an outlet coupler in a star configuration between which said array extends, the array having a first directed mean direction on departure of the waveguides of the array from the inlet coupler, and a second directed mean direction on arrival of the waveguides of the array at the outlet coupler, and presenting a directed general axis defined as being the axis passing through the centers of the couplers and on which a single positive direction is defined, and in which the first and second directed directions have respective directive angles measured algebraically from the general directed axis, which angles have the same sign.

Optical component having a waveguide array spectrograph with improved

The present invention relates to a multiplexer and/or demultiplexer optical component of the waveguide array spectrograph type, wherein the waveguides are numbered in order of increasing optical path length, the optical path lengths of the waveguides describing a function of waveguide number which varies about a mean linear function, a difference measured between said waveguide number function and said mean linear function describing a difference function not limited to a set of two linear functions, said difference function being suitable for giving the optical component a spectral response that is square in shape.

Demultiplexer with a square spectral response

A spectrographic type multiplexer and/or demultiplexer optical component having an array of waveguides, the component comprising a star inlet coupler and a star outlet coupler with said array extending therebetween, and also comprising an inlet light guide and an outlet light guide for said inlet and outlet couplers, respectively, wherein the spectrum response of the component is the sum of two substantially Gaussian spectrum responses of peaks that are offset in wavelength.

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Bagneux, France

Arnaud Rigny