Single-photon detector for long-distance quantum cryptography

2003 ◽  
Vol 86 (5) ◽  
pp. 10-15
Author(s):  
Naoto Namekata ◽  
Yuuki Makino ◽  
Shuichiro Inoue
Keyword(s):  
Quantum Cryptography ◽  
Single Photon ◽  
Photon Detector ◽  
Single Photon Detector ◽  
Long Distance

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.

A 1.25 GHz InGaAs/InP Single-Photon Detector for High-Speed Quantum Cryptography

2012 ◽  
Vol 39 (8) ◽  
pp. 0818001
Author(s):  
梁晓磊 Liang Xiaolei ◽  
蒋文浩 Jiang Wenhao ◽  
刘建宏 Liu Jianhong ◽  
张军 Zhang Jun ◽  
陈增兵 Chen Zengbing ◽  
...  
Keyword(s):  
Quantum Cryptography ◽  
High Speed ◽  
Single Photon ◽  
Photon Detector ◽  
Single Photon Detector

scholarly journals Target Tracking and Ranging Based on Single Photon Detection

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 278
Author(s):  
Zhikang Li ◽  
Bo Liu ◽  
Huachuang Wang ◽  
Zhen Chen ◽  
Qun Zhang ◽  
...  
Keyword(s):  
Target Tracking ◽  
Single Photon ◽  
Single Point ◽  
Single Photon Detection ◽  
Photon Detector ◽  
Single Photon Detector ◽  
Lateral Velocity ◽  
Long Distance ◽  
Photon Detection ◽  
Static Target

In order to achieve non-cooperative target tracking and ranging in conditions of a weak echo signal, this paper presents a real-time acquisition, pointing, tracking (APT), and ranging (APTR) lidar system based on single photon detection. With this system, an active target APT mechanism based on a single photon detector is proposed. The target tracking and ranging strategy and the simulation of target APT are presented. Experiments in the laboratory show that the system has good performance to achieve the acquisition, pointing and ranging of a static target, and track a dynamic target (angular velocity around 3 mrad/s) under the condition of extremely weak echo signals (a dozen photons). Meanwhile, through further theoretical analysis, it can be proven that the mechanism has stronger tracking and detection ability in long distance. It can achieve the active tracking of the target with a lateral velocity of hundreds of meters per second at about one hundred kilometers distance. This means that it has the ability of fast long-distance non-cooperative target tracking and ranging, only by using a single-point single photon detector.

Superconducting Single-Photon Detector on Lithium Niobate Waveguides

2020 ◽  
Author(s):  
A. V. Tronev ◽  
M. V. Parfenov ◽  
I. V. Ilichev ◽  
P. M. Agruzov ◽  
A. M. Ionov ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Single Photon ◽  
Photon Detector ◽  
Single Photon Detector

scholarly journals Sequential nonabsorbing microwave single-photon detector

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Ivan Iakoupov ◽  
Yuichiro Matsuzaki ◽  
William J. Munro ◽  
Shiro Saito
Keyword(s):  
Single Photon ◽  
Photon Detector ◽  
Single Photon Detector

scholarly journals Observation of photon antibunching with only one standard single-photon detector

2021 ◽  
Vol 92 (1) ◽  
pp. 013105
Author(s):  
Shaojie Liu ◽  
Xing Lin ◽  
Feng Liu ◽  
Hairui Lei ◽  
Wei Fang ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Detector ◽  
Single Photon Detector ◽  
Photon Antibunching
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