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

Xiuliang Chen,Guang Wu,Kun Huang,Haifeng Pan,Chengjie Ding,E Wu,Julien Laurat

doi:10.1038/srep44600

Abstract

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.

Highlights

To cite this version: Xiuliang Chen, Chengjie Ding, Haifeng Pan, Kun Huang, Julien Laurat, et al
As there was few effective way to estimate the influence of the afterpulsing noise in the PNR detection, quantum tomography[25,26,30,31,32,33,34,35,36] of the realized single-photon counter is presented and we provide the reconstructed positive operator-valued measure (POVM)[37], which fully characterizes the PNR capability of the detector
The temporal and spatial multiplexed single-photon counter can be fully characterized by its POVM30, which is a set of operators Πn corresponding to a particular measurement outcome n

Summary

Introduction

To cite this version: Xiuliang Chen, Chengjie Ding, Haifeng Pan, Kun Huang, Julien Laurat, et al. Temporal and spatial multiplexed infrared single-photon counter based on high-speed avalanche photodiode. HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. We report on a high-speed temporal and spatial multiplexed single-photon counter with photonnumber-resolving capability up to four photons. 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. Photon-number-resolving (PNR) detectors play a critical role in various applications ranging from experiments associated to the foundations of quantum mechanics to quantum information technologies[1,2,3]. The PNR ability would as well improve security of some quantum key distribution schemes against photon-number-splitting attacks[6]

Methods

Results

Conclusion