A miniature actively recharged single-photon detector free of afterpulsing effects with 6ns dead time in a 0.18µm CMOS technology

A CMOS single-photon detector, including a highly miniaturized active recharge circuit, achieving the highest counting rate yet reported for an afterpulsing-free Geiger-mode photodiode is introduced. Thanks to its low-noise and 6-ns dead time figure, a dynamic-range of 116dB for steady-state photon counting in a single acquisition time of 20ms was achieved.