Table 2.

Calculated fidelity to $(|\mathrm{HH}\rangle +|\mathrm{VV}\rangle )/\sqrt{\mathrm{2}}$ for four different time windows.

Time window (ns)	Counts (%)	Fidelity to $(|\mathbf{HH}\rangle +|\mathbf{VV}\rangle )/\sqrt{\mathbf{2}}$	Src	Sdc	Srd
4.48	100	0.817 ± 0.002	2.25 ± 0.01	2.01 ± 0.01	2.16 ± 0.01
1.41	88	0.829 ± 0.002	2.26 ± 0.01	2.04 ± 0.01	2.21 ± 0.01
0.38	50	0.847 ± 0.003	2.36 ± 0.01	2.10 ± 0.02	2.30 ± 0.01
0.13	18	0.850 ± 0.005	2.37 ± 0.02	2.10 ± 0.03	2.32 ± 0.02

The percentage of the correlation events taken into account for a certain time window is given in the second column. The calculated Bell parameters for all three bases combinations are always above the classical limit of 2.