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Self-differencing circuit to realize the spike cancellation.
(a) Gating pulse waveform. (b) APD response to the gating pulses. (c) Amplified avalanche signal at the output of the self-differencer.
Error count probability as a function of the detection efficiency.
Detector performance with different gating pulse durations. Operation temperature: .
Detector performance at different temperatures. Gating pulse duration: 700 ps.
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