Quantum Photonics Laboratory (QPL)

We explore the spectral-temporal properties of single photon pulses and their use as quantum information carriers. We combine methods of quantum optics, femtosecond pulse and nonlinear optics, temporal Fourier optics, electro-optics and high-frequency electronics to experimentally investigate coherent modification of spectral-temporal mode structure of quantum light. We explore photonic time-energy entanglement. Our results lead to photonic interfaces for quantum internet, quantum gates for time-frequency encoding and efficient quantum cryptography protocols.

We are a young dynamic group within the Optics Division of the Faculty of Physics (FUW) at the University of Warsaw (UW). FUW is a world-class research centre covering a broad area of physics and is the leading physics research institution in Poland. It hosts numerous groups both in optics (Ultrafast Phenomena Lab, Quantum Memories Lab, Photonic Nanostructures Facility, Information Optics Lab, Cold Atoms, Femtosecond Spectroscopy) as well as quantum information, quantum metrology and communications theory. This gives us an ideal setting for our research. We work in a state-of the art optical lab furnished with cutting-edge equipment, including low timing jitter supercoducting single-photon-counting detectors. We appreciate the support of Konrad Banaszek, Czesław Radzewicz and numerous funding programmmes (EU Structural Funds, National Science Centre of Poland). Our current funding includes a grant from the National Science Centre of Poland and a project funded by the Foundation for Polish Science Homing programme (project website).