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

Commissariat a L'energie Atomique

Institut National Des Sciences Appliquees De Lyon

Centre National De La Recherche Scientifique

Imec

Universiteit Gent

Regis Orobtchouk

Jean-Marc Fedeli

Christophe Kopp

Laurent Grenouillet

Günther Roelkens

Dries Van Thourhout

Philippe Grosse

Philippe Regreny

Pedro Rojo-Romeo

Liu Liu

Method of producing a photonic device including at least one light source and at least one photodetector on a structure including a waveguide layer, this method comprising the following steps: a) growing successively on a substrate (), a photodetection structure () and a light source structure (), the photodetection structure and the light source structure being made of a stack of layers, the light source layers being stacked on top of the photodetector layers and both structures sharing one of these layers. b) bonding the structure obtained by step a) to the said waveguide structure (), the light source structure being in contact with the said waveguide structure (), c) removing the substrate () from the structure obtained by step b), d) etching the structure () obtained by step c) to define the at least one photodetector (), e) etching the structure obtained by step d) to define the at least one light source (), f) forming electrodes () on the least one photodetector () and on the least one light source ().

Method of producing a photonic device and corresponding photonic device

Optical device with superimposed photonic circuits, for coupling to an optical waveguide. Said device comprises a substrate () and, on said substrate, an integrated photonic circuit () adapted to be coupled to at least one optical waveguide () which transmits a light signal () and for processing said signal. According to the invention, the circuit comprises two superimposed elementary integrated photonic circuits (), each of which is adapted to be coupled to a given polarization state of the signal and to process this state. The invention applies particularly to optical telecommunications.

Optical device with superimposed photonic circuits for coupling to one or more optical waveguides

A non-destructive method for characterizing a surface-illuminated integrated optical coupler associated with an optical waveguide, comprising the steps of measuring the reflection coefficient on a first region of the coupler at a distance from the optical waveguide and constructing a first curve, determining a first model of the reflection coefficient on the first region, performing a first parameter fitting between the first curve and the first model to determine first parameters, measuring the reflection coefficient on a second region of the coupler close to the guide, and constructing a second curve, determining a second model of the reflection coefficient on the second region, performing a second parameter fitting between the second curve and the second model to determine second parameters, and constructing the characteristic of the coupling efficiency of the coupler using the first and second parameters.

Non-destructive testing of an integrated optical coupler in an integrated optical circuit

Growing community of inventors

Fitilieu, France

Regis Orobtchouk