High speed single photon detection in the near-infrared

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dc.creatorYuan, Z. L.
dc.creatorKardynal, B. E.
dc.creatorSharpe, A. W.
dc.creatorShields, A. J.
dc.date2007-07-29
dc.date.accessioned2026-07-07T09:36:18Z
dc.date.available2026-07-07T09:36:18Z
dc.descriptionInGaAs avalanche photodiodes (APDs) are convenient for single photon detection in the near-infrared (NIR) including the fibre communication bands (1.31/1.55 $μ$m). However, to suppress afterpulse noise due to trapped avalanche charge, they must be gated with MHz repetition frequencies, thereby severely limiting the count rate in NIR applications. Here we show gating frequencies for InGaAs-APDs well beyond 1 GHz. Using a self-differencing technique to sense much weaker avalanches, we reduce drastically afterpulse noise. At 1.25 GHz, we obtain a detection efficiency of 10.8% with an afterpulse probability of 6.16%. In addition, the detector features low jitter (55 ps) and a count rate of 100 MHz.
dc.identifierhttps://arxiv.org/abs/0707.4307
dc.identifierhttp://arxiv.org/abs/0707.4307
dc.identifierAppl. Phys. Lett. 91, 041114(2007)
dc.identifierdoi:10.1063/1.2760135
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/160073
dc.subjectQuantum Physics
dc.subjectInstrumentation and Detectors
dc.subjectOptics
dc.titleHigh speed single photon detection in the near-infrared
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