Bonn 2025 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 63: Poster – Quantum Information (joint session QI/Q)

Q 63.5: Poster

Thursday, March 13, 2025, 17:00–19:00, Tent

Polarization Independent Frequency Conversion into the UV — •Katrin Schatzmayr, Anica Hamer, and Simon Stellmer — Rheinische Friedrich Wilhelms Universität Bonn

As the performance of quantum computers grows, quantum networks become more significant. A possible implementation of such a network is a hybrid architecture based on solid state emitters, network nodes, and photons serving as flying qubits. This exchange often requires frequency conversion of the photons while preserving entanglement.

We have successfully developed a polarization-independent frequency conversion setup based on nonlinear crystals that converts photons from the wavelength of a quantum dot at 853 nm (InAs/GaAs) to the wavelength of trapped Yb+ ions at 370 nm.

Keywords: Frequency Conversion; Nonlinear Crystal