The group of Prof. Kasper Van Gasse is researching a new generation of chip-scale solid-state lasers, pushing beyond the limitations of diode integration to deliver laboratory-grade performance in scalable platforms. Our work targets the key light sources needed for quantum technologies: ultra-narrow linewidth lasers for quantum computing, tunable sources for quantum networking, novel wavelengths for quantum sensing, and chip-integrated femtosecond lasers for optical clocks. The talk will focus on the development of the titanium-sapphire on insulator platform and the demonstrations to date. Moreover, we will explore hybrid integration strategies by transfer- printing titanium:sapphire and developing on-chip saturable absorbers for true femtosecond operation.
Kasper Van Gasse is an Associate Professor in the Photonics Research Group at Ghent University and imec, where he leads the ERC Starting Grant project LASIQ on chip-scale solid-state lasers for metrology and quantum systems. As a Belgian American Educational Foundation fellow, he worked at Stanford University in Jelena Vuckovic’s group, where he co- demonstrated the first thin-film titanium-sapphire nanophotonic laser platform.