Temporal and spatial multiplexed infrared single-photon counter based on high-speed avalanche photodiode | Zendy

Xiuliang Chen | Zendy; Chengjie Ding | Zendy; Haifeng Pan | Zendy; Kun Huang | Zendy; Julien Laurat | Zendy; Guang Wu | Zendy; E Wu | Zendy

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Temporal and spatial multiplexed infrared single-photon counter based on high-speed avalanche photodiode

Author(s) -

Xiuliang Chen,

Chengjie Ding,

Haifeng Pan,

Kun Huang,

Julien Laurat,

Guang Wu,

E Wu

Publication year - 2017

Publication title -

scientific reports

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.24

H-Index - 213

ISSN - 2045-2322

DOI - 10.1038/srep44600

Subject(s) - avalanche photodiode , detector , physics , photon , optics , photon counting , multiplexing , photodiode , photodetector , optoelectronics , computer science , telecommunications

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 a fiber loop to split, delay and recombine optical pulses and a 200 MHz dual-channel single-photon detector based on InGaAs/InP avalanche photodiode. To fully characterize the photon-number-resolving capability, we perform quantum detector tomography and then reconstruct its positive-operator-valued measure and the associated Wigner functions. The result shows that, despite of the afterpulsing noise and limited system detection efficiency, this temporal and spatial multiplexed single-photon counter can already find applications for large repetition rate quantum information schemes.

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