Detection efficiency characteristics of free-running InGaAs/InP single photon detector using passive quenching active reset IC

Zheng Fu^{1, 2}, Wang Chao^{1, 3}, Sun Zhi-Bin¹, Zhai Guang-Jie^{1, †,}

Measured waveform at the anode of APD at overbias of 0.9 V and deadtime of 1 μs.