Temporal and spatial multiplexed infrared single-photon counter based on high-speed avalanche photodiode
作者： Xiuliang Chen , Chengjie Ding , Haifeng Pan , Kun Huang , Julien Laurat
DOI: 10.1038/SREP44600
关键词:
摘要: We report on a high-speed temporal and spatial multiplexed single-photon counter with photon-number-resolving capability up to four photons. The infrared detector combines fiber loop split, delay recombine optical pulses 200 MHz dual-channel based InGaAs/InP avalanche photodiode. To fully characterize the capability, we perform quantum tomography then reconstruct its positive-operator-valued measure associated Wigner functions. result shows that, despite of afterpulsing noise limited system detection efficiency, this can already find applications for large repetition rate information schemes.
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