scholarly journals Investigation of the parameters of a single photon detector for quantum communication

2021 ◽  
Vol 2140 (1) ◽  
pp. 012030
Author(s):  
K I Khomiakova ◽  
A P Kokhanenko ◽  
A V Losev
Keyword(s):  
Quantum Efficiency ◽  
Bias Voltage ◽  
Quantum Communication ◽  
Single Photon ◽  
Avalanche Photodiodes ◽  
Noise Levels ◽  
Photon Detector ◽  
Single Photon Detector ◽  
Photon Detectors ◽  
Single Photon Detectors

Abstract Nowadays the best single photon detectors from a practical view are those based on InGaAs/InP avalanche photodiodes, operating at a wavelength of 1.55 μm. The dependence of quantum efficiency and noise levels on the temperature and bias voltage of avalanche photodiodes were carried out.

scholarly journals Advanced Superconducting Nanowire Single Photon Detectors for Photonic Quantum Technologies

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1096
Author(s):  
Jean-Michel Gérard ◽  
Anna Mukhtarova ◽  
Luca Redaelli ◽  
Houssaine Machhadani ◽  
Eva Monroy ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Detector ◽  
Single Photon Detector ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Superconducting Nanowire

In the field of quantum technologies, the superconducting nanowire single photon detector [...]

scholarly journals Development of Multifunction Micro-Pulse Lidar at 1.5 Micrometer

2020 ◽  
Vol 237 ◽  
pp. 07010
Author(s):  
Mingjia Shangguan ◽  
Haiyun Xia ◽  
Xiankang Dou ◽  
Jiawei Qiu ◽  
Chao Yu
Keyword(s):  
Single Photon ◽  
Photon Detector ◽  
Single Photon Detector ◽  
Photon Detectors ◽  
Avalanche Diodes ◽  
Single Photon Detectors ◽  
The University ◽  
Micro Pulse Lidar ◽  
Different Characteristics ◽  
Superconducting Nanowire

Taking advantage of the 1.5 μm lidar, a series of 1.5 μm micro-pulse lidars have been developed at the University of Science and Technology of China, in Hefei, China. According to the different characteristics of three kinds of single-photon detectors at 1.5 μm, namely superconducting nanowire single-photon detector, up-conversion SPDs and InGaAs/InP single-photon avalanche diodes, different kinds of lidar systems have been constructed to realize the detection of atmospheric visibility, cloud, depolarization, wind field at the atmospheric boundary layer.

scholarly journals A low-noise single-photon detector for long-distance free-space quantum communication

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Elena Anisimova ◽  
Dmitri Nikulov ◽  
Simeng Simone Hu ◽  
Mark Bourgon ◽  
Sebastian Philipp Neumann ◽  
...  
Keyword(s):  
Free Space ◽  
Quantum Communication ◽  
Detection Efficiency ◽  
Single Photon ◽  
Avalanche Photodiode ◽  
Low Noise ◽  
Photon Detector ◽  
Single Photon Detector ◽  
Long Distance ◽  
Communication Links

AbstractWe build and test a single-photon detector based on a Si avalanche photodiode Excelitas 30902SH thermoelectrically cooled to −100∘C. Our detector has dark count rate below 1 Hz, $500\ \mu\mathrm{m}$ 500 μ m diameter photosensitive area, photon detection efficiency around 50%, afterpulsing less than 0.35%, and timing jitter under 1 ns. These characteristics make it suitable for long-distance free-space quantum communication links, which we briefly discuss. We also report an improved method that we call long-time afterpulsing analysis, used to determine and visualise long trap lifetimes at different temperatures.

scholarly journals Superconducting nanowire single-photon detectors: Quantum efficiency vs. film thickness

2010 ◽  
Vol 234 (1) ◽  
pp. 012017 ◽  
Author(s):  
M Hofherr ◽  
D Rall ◽  
K S Ilin ◽  
A Semenov ◽  
N Gippius ◽  
...  
Keyword(s):  
Film Thickness ◽  
Quantum Efficiency ◽  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Superconducting Nanowire
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