Continuous Variable Quantum Communications

Applying CV-QKD in Existing Telecom Infrastructure

Duration: October 2019 – September 2022


In the CiVIQ project, CV-QKD transmission in existing telecommunication fibre infrastructure is explored. The task of HHI is to develop coherent receivers for CV-QKD on the basis of HHI's InP technology, being already used in classical telecommunications. The coherent receivers are based on photonic local oscillators, multimode interference couplers and PIN photodiodes for heterodyne detection of coherent QKD signals.