Skip to content
DraconiticResearch
Search Sources API
190,851 studies31 sourcesUpdated 3 min ago
PreprintarXiv licencearXiv

Efficiency-Resolved Recovery Dynamics of an Free-Running InGaAs/InP Single Photon Avalanche Detector Operated in Gated Mode

  • Bruno Santos Souza
  • Vitor Tavares
  • Filippo Ghiglieno
  • Celso Jorge Villas-Boas
  • Paulo Henrique Dias Ferreira
Open at sourcePDFDOICite

Abstract

Detection efficiency in gated-mode single-photon avalanche detectors recovers gradually after each gate edge, limiting attainable count rates, yet quantitative recovery models exist only for free-running operation. We extract the gated recovery time constant of a free-running InGaAs/InP detector at 1550 nm by sweeping the gate frequency from 100 kHz to 1 MHz and globally fitting count rates across four dead times, requiring neither a pulsed laser nor a time-to-digital converter. The recovery time decreases linearly with detection efficiency, from 301 to 161 ns between 10 % and 25 %, at 9.3 ns per percentage point. We further resolve a periodic count-rate modulation consistent with bias-dependent capacitive gate feedthrough.

Related

  1. Polarization-insensitive high-efficiency superconducting nanowire single-photon detector
    Xin Xu, Yue Fei, Qi Chen +10
    Optics ExpressPeer-reviewedPublisher termsOptics & photonicsCrossref
  2. The efficiency of moderating neutron detector: Monte Carlo simulation, experimental validation, and angular dependence
    Carl R. Brune
    arXivPreprintarXiv licenceFull textApplied physics & instrumentationNuclear physicsarXiv
  3. Detector Placement Relaxes Efficiency Requirements for Detecting a Weak Coherent Link
    M. H. Yu, S. Y. Li, X. Z. Zhang
    arXivPreprintCC BY 4.0Full textQuantum physics & quantum informationarXiv
  4. Density-Guided Conditional Neural Processes for Detector Efficiency Estimation
    Yue Ma, Aobo Li
    arXivPreprintCC BY 4.0Full textHigh-energy & particle physicsarXiv
  5. Physics-Informed Neural Networks for Depth-Averaged Granular Avalanche Dynamics on Curved Topography
    Pujan Pranavkumar Purohit, Pradyumn Singh Sikarwar, Vishal Sharma +1
    arXivPreprintCC BY-NC-ND 4.0Full textCondensed matterFluid dynamicsarXiv

Cite

BibTeXRIS
BibTeX
@misc{souza2026efficiencyresolved,
  title = {{Efficiency-Resolved Recovery Dynamics of an Free-Running InGaAs/InP Single Photon Avalanche Detector Operated in Gated Mode}},
  author = {Bruno Santos Souza and Vitor Tavares and Filippo Ghiglieno and Celso Jorge Villas-Boas and Paulo Henrique Dias Ferreira},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.17694},
  eprint = {2609.17694},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.17694},
}
RIS
TY  - UNPB
TI  - Efficiency-Resolved Recovery Dynamics of an Free-Running InGaAs/InP Single Photon Avalanche Detector Operated in Gated Mode
AU  - Bruno Santos Souza
AU  - Vitor Tavares
AU  - Filippo Ghiglieno
AU  - Celso Jorge Villas-Boas
AU  - Paulo Henrique Dias Ferreira
PY  - 2026
DA  - 2026/09/15
PB  - arXiv
DO  - 10.48550/arxiv.2609.17694
UR  - https://arxiv.org/abs/2609.17694
AB  - Detection efficiency in gated-mode single-photon avalanche detectors recovers gradually after each gate edge, limiting attainable count rates, yet quantitative recovery models exist only for free-running operation. We extract the gated recovery time constant of a free-running InGaAs/InP detector at 1550 nm by sweeping the gate frequency from 100 kHz to 1 MHz and globally fitting count rates across four dead times, requiring neither a pulsed laser nor a time-to-digital converter. The recovery time decreases linearly with detection efficiency, from 301 to 161 ns between 10 % and 25 %, at 9.3 ns per percentage point. We further resolve a periodic count-rate modulation consistent with bias-dependent capacitive gate feedthrough.
ER  -