Coherent frequency-conversion of quantum dot photons to the telecommunication C-band for quantum communication applications

Abstract

We demonstrate frequency-conversion of quantum dot photons to the telecom C-band enabled by a custom-built, tunable mid-infrared laser. We achieve high brightness while preserving the photons' coherence properties, outperforming state-of-the-art solid-state emitters at telecom wavelengths. (C) 2021 The Author(s)