Fig. 4

Experimental setup of multi-channel entanglement distribution of one sender and two receivers. a Experimental setup. A silicon-on-insulator waveguide on Chip I serves as a quantum source. Chip II-a and Chip II-b are energy-time entanglement preparation and analysis chips, which serve as the receivers. Standard single mode fibers with one-kilometer length connect the chips b The raw coincidence of the central peak for CH11&CH7 versus phase. The black dots are measured coincidences. The gray curve is obtained by fitting the measured results using the sine function. The error bar comes from the Poisson statistical distribution. Red and blue dots refer to single channel counts of idler and signal photons, respectively