Figure 4 - uploaded by Shelan Khasro Tawfeeq
Content may be subject to copyright.
Download
View publication
SPAD simulator model layers

SPAD simulator model layers

Source publication
Figure 1. SPAD passive quenching circuit [13]
Figure 4. SPAD simulator model layers
Figure 10. Test 3 simulation results for: N 0 =0.2, V ex =10 V and T=-30 ℃
Figure 11. Test 4 simulation results for: N 0 =0.2, V ex =10 V and T=22 ℃
Inputs and outputs for the SPAD simulator
Design and implementation of silicon single-photon avalanche photodiode modeling tool for QKD systems
Article
Full-text available
  • Oct 2021
Single-photon detection concept is the most crucial factor that determines the performance of quantum key distribution (QKD) systems. In this paper, a simulator with time domain visualizers and configurable parameters using continuous time simulation approach is presented for modeling and investigating the performance of single-photon detectors ope...
Cite
Download full-text

Similar publications

FIG. 1. (a) Schematic diagram of 4H-SiC SPAD structure with a beveled...
FIG. 2. (a) Schematic circuit diagram of the 4H-SiC SPD. (b) Photo of...
FIG. 3. Experimental setup for UVSPAD characterization.
FIG. 4. Distribution of the normalized photon detection efficiency...
Free-running 4H-SiC single-photon detector with ultralow afterpulse probability at 266 nm
Preprint
Full-text available
  • Feb 2023
Ultraviolet single-photon detector (UVSPD) provides a key tool for the applications requiring ultraweak light detection in the wavelength band. Here, we report a 4H-SiC single-photon avalanche diode (SPAD) based free-running UVSPD with ultralow afterpulse probability. We design and fabricate the 4H-SiC SPAD with a beveled mesa structure, which exhi...
View
(a) Optical microscope image of a candelabra-style SMSPD. The purple...
(a) Current-voltage (I–V) characteristics of the microbridge and...
(a) SDE as a function of the bias current ( ${I_b}$ I b ) for the...
(a) Histogram of time-correlated photon counts of the CS-SMSPD,...
+1 Schematic of the time-of-flight imaging setup, mainly including an...
Free-space coupled, large-active-area superconducting microstrip single-photon detector for photon-counting time-of-flight imaging
Article
Full-text available
  • Apr 2024
Numerous applications at the photon-starved regime require a free-space coupling single-photon detector with a large active area, low dark count rate (DCR), and superior time resolutions. Here, we developed a superconducting microstrip single-photon detector (SMSPD), with a large active area of 260 µm in diameter, a DCR of ${\sim}{5}\;{\rm kcps}$ ∼...
View
Figure 1. (a) Optical microscope image of a candelabra-style SMSPD. The...
Figure 3. (a) SDE as a function of the bias current (I b ) for the...
Figure 4. (a) Histogram of time-correlated photon counts measured at...
Figure 6. Photos of the scenes: (a) a big Panda toy with dimensions of...
Physical parameters of a microbridge fabricated with irradiated NbN...
A free-space coupled, large-active-area superconducting microstrip single-photon detector for photon-counting time-of-flight imaging
Preprint
Full-text available
  • Feb 2024
Numerous applications at the photon-starved regime require a free-space coupling single-photon detector with a large active area, low dark count rate (DCR), and superior time resolutions. Here, we developed a superconducting microstrip single-photon detector (SMSPD), with a large active area of 260 μm in diameter, a DCR of ~5 kcps, and a low time j...
View
Fig. 1 DPS-QKD protocol [24]. Phase Modulator (PM), Attenuator(ATT),...
Fig. 2 Dark count dependency on the applied pump power.
Fig. 3 Secure key generation under the considered attacks, b = 0.01; µ...
Fig. 4 Secure key generation under the considered attacks, b = 0.01; µ...
+1 Fig. 9 Secure key generation under the considered attacks, b = 0.01; µ...
Analysis of Single Photon Detectors in Differential Phase Shift Quantum Key Distribution
Preprint
Full-text available
  • Jul 2023
In the current research work, an analysis of differential phase shift quantum key distribution using InGaAs/InP and Silicon-APD (avalanche photodiode) as single photon detectors is performed. Various performance parameters of interest such as shifted key rate, secure key rate, and secure communication distance obtained are investigated. In this opt...
View
FIG. 1. Detector schematics for a variance measurement setup and...
FIG. 2. S/N defined in Eq. 4 for the dark count rate and the probe...
FIG. 4. (a) Power transmission vs. frequency at a constant probe power...
Speeding axion haloscope experiments using heterodyne-variance-based detection with a power-meter
Preprint
Full-text available
  • Sep 2022
We describe a new axion search method based on measuring the variance in the interference of the axion signal using injected photons with a power detector. The need for a linear amplifier is eliminated by putting a strong signal into the microwave cavity, to acquire not only the power excess but also measure the variance of the output power. The in...
View