Fig. 2: Measured path visibility fringes between different detector combinations with an integration time of 1s. | npj Quantum Information

Fig. 2: Measured path visibility fringes between different detector combinations with an integration time of 1s.

From: Simultaneous transmission of hyper-entanglement in three degrees of freedom through a multicore fiber

Fig. 2

The detector combinations are the following: blue D1/D3, red D2/D4, green D1/D4 and yellow D2/D3. For the errors we assumed Poissonian statistics. The difference in the absolute coincidence counts is most likely due to different losses for each channel, such as coupling and detection efficiencies at the SNSPDs.

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