This project aims to develop and characterize nanophotonic integrated lasers based on silicon nitride wabeguides (Si₃N₄) combined with ytterbium-doped silicon oxide (Yb:SiO_x).

Silicon nitride provides a low-loss nanophotonic platform, while the ytterbium-doped oxide provides gain at near infrared wavelengths, suitable for quantum technologies. The specific objective is to investigate the performance of these lasers in a cryostat environment, enabling the ultra-low-noise operation required for precise control of trapped ions and cold atoms in quantum computing systems. By operating in cryogenic conditions, we expect to reduce thermal noise, thereby enhancing the coherence and stability of the laser output.

This project will address key challenges in integrating high-performance lasers with scalable photonic circuits, pushing the boundaries of quantum computing by providing a reliable, low-noise laser source for quantum control tasks.