• Infrared and Laser Engineering
  • Vol. 53, Issue 4, 20230701 (2024)
Yang Cao1, Yang Su1, Lianjun Jiang2,*, Ming Liu2..., Shuyang Guo1, Wenzhe Zhang1, Yuqiang Fang2, Song Gao2, Zunyao Chen2, Zhitong Chen2, Lin Yu2 and Shibiao Tang2|Show fewer author(s)
Author Affiliations
  • 1Power Dispatching and Control Center, China Southern Power Grid, Guangzhou 510000, China
  • 2QuantumCTek Co., Ltd., Hefei 230088, China
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    DOI: 10.3788/IRLA20230701 Cite this Article
    Yang Cao, Yang Su, Lianjun Jiang, Ming Liu, Shuyang Guo, Wenzhe Zhang, Yuqiang Fang, Song Gao, Zunyao Chen, Zhitong Chen, Lin Yu, Shibiao Tang. Afterpulse suppression scheme of InGaAs/InP high speed sinusoidal gated single photon detector[J]. Infrared and Laser Engineering, 2024, 53(4): 20230701 Copy Citation Text show less
    Block diagram of high-speed sine gated single-photon detector
    Fig. 1. Block diagram of high-speed sine gated single-photon detector
    Afterpulse suppression scheme based on detection event time measurement. (a) Block diagram; (b) Time sequence diagram
    Fig. 2. Afterpulse suppression scheme based on detection event time measurement. (a) Block diagram; (b) Time sequence diagram
    Block diagram of afterpulse measurement system for single-photon detector
    Fig. 3. Block diagram of afterpulse measurement system for single-photon detector
    Normalization of time measurement results for detecting pulses
    Fig. 4. Normalization of time measurement results for detecting pulses
    Detection pulse count distribution (the discard time is 100 ns)
    Fig. 5. Detection pulse count distribution (the discard time is 100 ns)
    Afterpulses triggered by avalanche signals that do not pass the discrimination threshold
    Fig. 6. Afterpulses triggered by avalanche signals that do not pass the discrimination threshold
    Afterpulse probability changes with different discard times of single-photon detector
    Fig. 7. Afterpulse probability changes with different discard times of single-photon detector
    Detection pulses with different arrival times
    Fig. 8. Detection pulses with different arrival times
    Yang Cao, Yang Su, Lianjun Jiang, Ming Liu, Shuyang Guo, Wenzhe Zhang, Yuqiang Fang, Song Gao, Zunyao Chen, Zhitong Chen, Lin Yu, Shibiao Tang. Afterpulse suppression scheme of InGaAs/InP high speed sinusoidal gated single photon detector[J]. Infrared and Laser Engineering, 2024, 53(4): 20230701
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