Coexistence of 11.2 Tb/s carrier-grade classical channels and a DV-QKD channel over a 7-core multicore fibre

摘要

We successfully demonstrate coexistence of record-high 11.2 Tb/s (56×200Gb/s) classical channels with a discrete-variable-QKD channel over a multicore fibre. Continuous secret key generation is confirmed together with classical channel performance below the SDFEC limit and a minimum quantum channel spacing of 17nm in the C-band.