Labonté Laurent
University of Nice Sophia Antipolis, France
Title: Silicon photonics: Generation of entangled photon pairs
Biography
Biography: Labonté Laurent
Abstract
Integrated quantum photonics has already proven its suitability for high-performance photon-pair source realizations and basic quantum state simulation. Among all physical technological platforms (lithium niobate, KTP, III/V semiconductors), silicon photonics stands as a promising avenue for developing cost-effective quantum circuits, with the potential for on-chip signal processing. Thanks to the possibility of integrating electronics and photonics in a full monolithic fashion. Notably, integrated ring cavities already enable producing entangled photons, thanks to enhanced third-order nonlinear processes. In this talk, we report the generation of entangled photon pairs in micro-ring cavity based on silicon-on-insulator structure (SOI), in energy-time format, which is widely suited for the fiber based quantum key distribution (QKD) because of its robustness against polarization mode dispersion and disturbance. Furthermore, since this on-chip quantum entangled photons pair source is fully compatible with telecom components, it offers a path toward quantum photonic circuits for the next QKD real-world system.