Yaoqiang Long, Xiao Shan, Wen Wu, Yan Liang. Low-noise GHz InGaAs/InP single-photon detector (invited)[J]. Infrared and Laser Engineering, 2023, 52(3): 20220901
- Infrared and Laser Engineering
- Vol. 52, Issue 3, 20220901 (2023)
Fig. 1. APD test chart in linear mode
Fig. 2. Diagram of the QDT experimental setup
Fig. 3. (a) Diagram of sinusoidal gating experimental device based on low pass filtering; (b) APD output signal waveform at 1500 MHz gate frequency; (c) Avalanche signal after low-pass filter and amplification
Fig. 4. (a) Dark counting and afterpulse probability at 10.0% detection efficiency; (b) Test chart of different detection frequencies at 20% detection efficiency
Fig. 5. Performance test chart at different temperatures with 20.0% detection efficiency
Fig. 6. Counting without incident light intensity
Fig. 7. (a) QDT chromatography, fitting and theoretical diagram; (b) Wigner function diagram
Fig. 8. 12 hour stability test chart under 20.0% detection efficiency
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