5/11/2024 – Visible laser solutions for quantum technology currently on the market are costly and cumbersome. The QoQeliQo* project, led by Oxxius in partnership with the Institut Foton and Silentsys, aims to support the industrial development of quantum technologies by offering compact, coherent visible lasers at competitive prices. The solution consists of refining visible lasers by stimulated Brillouin scattering (SBS), which are useful for manipulating Yb (556 nm) and Sr (689 nm) atoms.
Two products will be developed as part of this project:
- The first is a visible Brillouin laser with very high spectral purity (sub-kHz) and agile frequency, making it possible to address spectroscopic lines recognised as essential by manufacturers in the French quantum industry.
- The second product is a spectral refinement module for visible lasers that can be applied to any laser technology and can therefore be hybridized with high-power lasers whose spectral performance is insufficient. The aim is to provide the community with an additional technological building block that will make it possible to combine high power and narrow linewidth. These two performances are necessary for the development of quantum technologies at an industrial level, but are difficult to address simultaneously. In this respect, the QoQeliQo project will remove a crucial technological barrier to future developments in the field.
Oxxius has begun developing the first pump lasers at 532 nm and 556 nm; the power and frequency control expected for the project have been demonstrated in the laboratory. Further testing and integration are now required to validate the project’s initial deliverables.
* This project has been accredited by the Images et Réseaux competitiveness cluster.
at 532nm – Institut Foton