Heterogenous Photonic Integration for Quantum Optical Communication

Invited talk by partner University of Ljubljana about the ambition and results of the uTP4Q project.

Simulation study of propagation losses due to sidewall roughness of GaAs waveguides for single-photon sources in quantum applications

Quantum photonic integrated circuits impose stringent requirements on integrated components since every source of loss decreases the single photon rate. In this study, we utilize numerical simulations to analyze the effects of sidewall roughness of GaAs waveguides (WGs) in single-photon sources on:

  • waveguide propagation losses

  • the coupling efficiency to a low-loss SiN-based interposer.

Micro-Transfer Printing for Heterogeneous Si Photonic Integrated Circuits

Review paper by partner Ghent University about micro-transfer printing(the uTP in uTP4Q) and it’s applications. Many of the examples such as the printing of Lithium Niobate and of waveguides with quantum dots will be combined in the utp4Q project.

Towards single-photon sources heterogeneously integrated on SiN

Poster award winning contribution for the International Conference on Integrated Quantum Photonics 2022 in Copenhagen, showing preliminary results on our micro-transfer printing technique of single photon sources.