Fig. 4
From: QKD protected fiber-based infrastructure for time dissemination

(a) Background photons in a 24h acquisition frame. (b) QBER as a function of time during a key exchange process.
From: QKD protected fiber-based infrastructure for time dissemination

(a) Background photons in a 24h acquisition frame. (b) QBER as a function of time during a key exchange process.