Abstract (eng)
We perform the first comparative study of afterpulses in various single photon counting avalanche photodiodes. We also extend the study by comparing several manufacturer. These afterpulses have been link to the deep level of the semiconductor used in the detectors, however our study show that this is not the full truth. Further, with the discovery of novelties such as higher order of afterpulses and dependency of afterpulses on various parameter, the charaterization of afterpulses is not so simple as expected.