Waveguide devices for solid state lasers

The project focused on the development of miniaturized laser sources operating in the visible and near-infrared spectrum, based on waveguides fabricated in rare-earth-doped fluoride crystals. In particular, using praseodymium as the dopant, laser emissions were observed in the cyan, green, orange, red, and deep red regions, as well as in the near-infrared band. Using a dysprosium and terbium co-doped system, a waveguide laser system operating in the yellow band was developed. Waveguide lasers operating in the cyan and yellow bands were demonstrated for the first time. In addition, output power records were achieved for this category of devices. Finally, continuous emission in the red band from a dysprosium-based solid-state system was demonstrated for the first time.