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Figure 4 | EPJ Quantum Technology

Figure 4

From: A low-noise single-photon detector for long-distance free-space quantum communication

Figure 4

Standard afterpulsing analysis. (a) Scheme for afterpulsing analysis that considers only time intervals between adjacent counts. Resulting histograms with (b) 228 ns bins and (c) 0.03 s bins fail to show the entire afterpulse characteristic. Data size is 114,109 counts. The dark counts were obtained from C30902SH APD at −100C and 14 V over breakdown. The beginning of the first bin in (c) is artificially set at the expected dead time measured separately with an oscilloscope

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