scholarly journals Detection of ultra-weak laser pulses by free-running single-photon detectors: Modeling dead time and dark counts effects

2021 ◽  
Vol 118 (17) ◽  
pp. 174002
Author(s):  
Hristina Georgieva ◽  
Alice Meda ◽  
Sebastian M. F. Raupach ◽  
Helmuth Hofer ◽  
Marco Gramegna ◽  
...  
Keyword(s):  
Dead Time ◽  
Single Photon ◽  
Laser Pulses ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Dark Counts ◽  
Free Running

Origin of Dark Counts in Nanostructured NbN Single-Photon Detectors

2005 ◽  
Vol 15 (2) ◽  
pp. 545-548 ◽  
Author(s):  
J. Kitaygorsky ◽  
J. Zhang ◽  
A. Verevkin ◽  
A. Sergeev ◽  
A. Korneev ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Dark Counts

scholarly journals Radiation-Induced Dark Counts for Silicon Single-Photon Detectors in Space

2021 ◽  
Vol 16 (6) ◽  
Author(s):  
Brandon A. Wilson ◽  
Alexander Miloshevsky ◽  
David A. Hooper ◽  
Nicholas A. Peters
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Dark Counts ◽  
Radiation Induced

scholarly journals Quantum eavesdropping without interception: an attack exploiting the dead time of single-photon detectors

2011 ◽  
Vol 13 (7) ◽  
pp. 073024 ◽  
Author(s):  
Henning Weier ◽  
Harald Krauss ◽  
Markus Rau ◽  
Martin Fürst ◽  
Sebastian Nauerth ◽  
...  
Keyword(s):  
Dead Time ◽  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
The Dead

Dark Counts in Nanostructured NbN Superconducting Single-Photon Detectors and Bridges

2007 ◽  
Vol 17 (2) ◽  
pp. 275-278 ◽  
Author(s):  
J. Kitaygorsky ◽  
I. Komissarov ◽  
A. Jukna ◽  
D. Pan ◽  
O. Minaeva ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Dark Counts

scholarly journals A study to develop a robust method for measuring the detection efficiency of free-running InGaAs/InP single-photon detectors

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
M. López ◽  
A. Meda ◽  
G. Porrovecchio ◽  
R. A. Starkwood ◽  
M. Genovese ◽  
...  
Keyword(s):  
Detection Efficiency ◽  
Single Photon ◽  
Photon Number ◽  
Photon Counting ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Free Running ◽  
Photon Counting Detectors ◽  
Single Laboratory ◽  
Measurement Approach

AbstractThe challenges faced in a comparison of measuring the detection efficiency of free-running InGaAs/InP single-photon avalanche detectors (InGaAs/InP SPAD) were studied by four European National Metrology Institutes (NMIs) meeting at a single laboratory. The main purpose of this study is to develop a trustable measurement technique and to provide a snapshot of the methods used by the four NMIs for measuring such photon-counting detectors at telecom wavelengths in order to establish proper procedures for characterising such devices. The detection efficiency measurements were performed using different experimental setups and reference standards with independent traceability chains at the wavelength of 1550 nm. A dedicated model to correct the dead time and dark count effects on the SPAD’s free-running counting process was developed, allowing the correct value of the photon rate impinging on the detector to be recovered from simple ratemeter measurements. The detection efficiency was measured for mean photon number per pulse between 0.01 and 2.4, corresponding to photon rates between approximately 1100 photon/s and 193,000 photon/s, respectively. We found that the measured values reported by the participants are all consistent within the stated uncertainties, proving the consistency of the measurement approach developed.

Amplitude distributions of dark counts and photon counts in NbN superconducting single-photon detectors integrated with the HEMT readout

2017 ◽  
Vol 532 ◽  
pp. 33-39 ◽  
Author(s):  
J. Kitaygorsky ◽  
W. Słysz ◽  
R. Shouten ◽  
S. Dorenbos ◽  
E. Reiger ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Dark Counts

scholarly journals Reducing Afterpulsing in InGaAs(P) Single-Photon Detectors with Hybrid Quenching

Sensors ◽  
2020 ◽  
Vol 20 (16) ◽  
pp. 4384
Author(s):  
Junliang Liu ◽  
Yining Xu ◽  
Zheng Wang ◽  
Yongfu Li ◽  
Yi Gu ◽  
...  
Keyword(s):  
High Frequency ◽  
High Performance ◽  
Detection Efficiency ◽  
Single Photon ◽  
Photon Detectors ◽  
Avalanche Diodes ◽  
Single Photon Detectors ◽  
High Detection Efficiency ◽  
Free Running ◽  
Quenching Method

High detection efficiency appears to be associated with a high afterpulse probability for InP-based single-photon avalanche diodes. In this paper, we present a new hybrid quenching technique that combines the advantages of both fast active quenching and high-frequency gated-passive quenching, with the aim of suppressing higher-order afterpulsing effects. Our results showed that the hybrid quenching method contributed to a 10% to 85% reduction of afterpulses with a gate-free detection efficiency of 4% to 10% at 1.06 μm, with 40 ns dead time, compared with the counter-based hold-off method. With the improvement of the afterpulsing performance of high-frequency gated single-photon detectors, especially at relatively high average detection efficiencies with wide gate widths, the proposed method enables their use as high-performance free-running detectors.

scholarly journals Dark counts double switching rates in NbTiN Superconducting Nanowire Single Photon Detectors

2020 ◽  
Vol 1559 ◽  
pp. 012016
Author(s):  
D Salvoni ◽  
M Ejrnaes ◽  
L Parlato ◽  
X Y Yang ◽  
L X You ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Dark Counts ◽  
Superconducting Nanowire

An efficient performance evaluation modeling tool for SNSPD used in QKD systems

2019 ◽  
Vol 17 (07) ◽  
pp. 1950059
Author(s):  
Adil F. Mushatet ◽  
Shelan K. Tawfeeq
Keyword(s):  
Detection Efficiency ◽  
Single Photon ◽  
Single Photon Detection ◽  
Photon Detectors ◽  
Photon Detection ◽  
Efficient Performance ◽  
Single Photon Detectors ◽  
Dark Counts ◽  
Photon Detection Efficiency ◽  
The Impact

Single-photon detection concept is the most crucial and often difficult factor to determine the performance of quantum key distribution (QKD) systems. One solution to facilitate understanding this concept is to create a virtual environment for modeling, analyzing, and investigating the performance of single photon detectors. In this paper, a simulator for superconducting single photon detectors with time domain visualizer and configurable parameters is presented. The widely used ID281SNSPD in the QKD area was theoretically modeled in terms of pulse analysis, the impact of biasing current and the temperature on the dark counts rate and single photon-detection efficiency and influence of the number of photons per pulse on the single photon-detection efficiency. The simulated results were in good agreement with the theoretical results and the simulator demonstrated its adaptability.

scholarly journals Reduced dark counts in optimized geometries for superconducting nanowire single photon detectors

2012 ◽  
Vol 20 (21) ◽  
pp. 23610 ◽  
Author(s):  
Mohsen K. Akhlaghi ◽  
Haig Atikian ◽  
Amin Eftekharian ◽  
Marko Loncar ◽  
A. Hamed Majedi
Keyword(s):  
Single Photon ◽  
Photon Detectors ◽  
Single Photon Detectors ◽  
Dark Counts ◽  
Superconducting Nanowire ◽  
Optimized Geometries
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