Complex photonic components with integrated, ultra-fine 3D microstructures are of great interest for various areas of application, for example in telecommunications or quantum technology. They can be used to further advance miniaturization, for example.
In the LAR3S project, scientists from the Fraunhofer Institutes ILT and ISC and the Max Planck Institute for the Science of Light (MPL) are jointly developing new and automatable processes for the production of such components, which offer new geometries and design freedom. The focus is on laser drilling, which is being further developed for the structuring of glass fibres, and selective laser-induced etching (SLE), which the partners are optimizing for the production of microresonators. The aim is also to combine laser processes with methods from the field of artificial intelligence in the future.