Fig. 4: Two-photon interference of energy-time entanglement.
From: Entangled photon pair generation in an integrated SiC platform
a Histogram of constructive (blue) and destructive (red) interference of the energy-time entanglement measured in Fig. 1c. b Two-photon interference fringe obtained by varying the phase difference of the short-long paths in the unbalanced Franson interferometer
