LIGHT SOURCE ADAPTED TO EMIT PAIRS OF POLARIZATION-ENTANGLED PHOTONS

The invention relates to a light source 1 comprising a photonic wire 20 having a single-mode core 21 and adapted to support an optical mode which is degenerate in polarization, comprising an emitter 24 of a pair of photons which are intended to be entangled in polarization. The photonic wire 20 comprises a cladding 25 which is asymmetrical in rotation and extends along a principal transverse axis Atg. Furthermore, the light source 1 comprises a correction device 50 adapted to induce by electrostatic effect a mechanical deformation of the photonic wire 20 in a plane parallel to the substrate 10, along a deformation axis Ad forming an angle of inclination of between 0° and 90°, these values being exclusive, with respect to the principal transverse axis Atg, the mechanical deformation leading to mechanical strains experienced by the emitter 24, thus improving the degree of entanglement of the photon pair.