Nonlinear integrated optics

Nonlinear integrated optics


Nonlinear integrated optics

Optique non linéaire intégrée (ONLI)

The ONLI team design, realize and use sources and integrated circuits whose functionality is based on nonlinear interactions. The OPTINIL platform realizes most of the components on Lithium Niobate, combining a proprietary waveguide fabrication process developed by the team with phase matching engineering techniques available on this material. This allowed realizing very powerful components in various regimes such as parametric down conversion or sum frequency. These components have applications in classical optics (integrated OPO, frequency convertors, etc… ) and in quantum optics (entangled photons pair sources, quantum information processing circuits, …). More recently, thanks to a close collaboration with CRHEA, the team realized nonlinear components on GaN, with the objective to achieve UV sources coupling a laser and a frequency doubler on the same substrate.