Photon counting and timing are generic tasks in many photonics laboratories. However, the cost of a commercial photon counter system can be a limiting factor to establish a new laboratory. Homemade photon counters can present a cost-saving solution, but they can also present a demanding side project not always part of the main research. Modern digital oscilloscopes are available in most universities and can provide a simple solution to measure photon statistics. Here, we describe the technicalities and limitations for counting and timing photons using a digital oscilloscope. (C) 2019 Optical Society of America
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