Alexis Hobl is with CEA-Leti. He graduated from the École Normale Supérieure de Rennes in Electrical Engineering and from Grenoble INP Phelma with a specialization in photonics and semiconductor devices. He began his PhD in October 2024 at CEA-Leti, Université Grenoble Alpes. His research focuses on the heterogeneous integration of quantum cascade lasers (QCLs) onto silicon-based mid-infrared photonic platforms for spectroscopic applications. He develops novel hybrid III-V/Si QCL architectures and CMOS-compatible solutions enabling efficient optical coupling between III-V active regions and silicon waveguides. His work aims to advance scalable, low-cost photonic devices and circuits for applications in chemical sensing, environmental monitoring, and integrated spectroscopy.
In an interview recapping the Photonics West Conference, which took place in San Francisco, California in January, Alexis Hobl of CEA-Leti sat down with Spectroscopy to discuss his work integrating quantum cascade lasers (QCLs) with silicon photonic platforms and how it is evolving mid-infrared (MIR) photonics.
