High performance of gated-mode single-photon detector at 1.55 μm

Guang Wu; Chunyuan Zhou; Xiuliang Chen; Heping Zeng

doi:10.1016/j.optcom.2006.03.053

High performance of gated-mode single-photon detector at 1.55 μm

Guang Wu, Chunyuan Zhou, Xiuliang Chen, Heping Zeng

Institute for Advanced Study in Precision Spectroscopy

East China Normal University

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

High performances of single-photon detection at 1.55 μm were achieved by operating InGaAs/InP avalanche photodiodes in the gated mode at the optimized temperature. As short pulses used in the gated-mode detection produce strong spikes, a transformer-based method was invented to cancel the spikes, which makes it possible to reduce the dark counts by using short-gate pulse durations, and to discriminate the avalanche signals at low thresholds. The spike-cancellation single-photon detection at the optimized temperature produced a detection efficiency of 20% with a dark-count probability of 3.4 × 10^-7 per pulse. With such a single-photon detector, a stable single-photon routing was realized in 155 km optical fibers with the average photon number 〈n〉 = 0.1 per pulse, exhibiting a fringe contrast of 87%.

Original language	English
Pages (from-to)	126-131
Number of pages	6
Journal	Optics Communications
Volume	265
Issue number	1
DOIs	https://doi.org/10.1016/j.optcom.2006.03.053
State	Published - 1 Sep 2006

Keywords

Photon counting
Quantum cryptography
Single-photon detection
Single-photon routing

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10.1016/j.optcom.2006.03.053

Cite this

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title = "High performance of gated-mode single-photon detector at 1.55 μm",

abstract = "High performances of single-photon detection at 1.55 μm were achieved by operating InGaAs/InP avalanche photodiodes in the gated mode at the optimized temperature. As short pulses used in the gated-mode detection produce strong spikes, a transformer-based method was invented to cancel the spikes, which makes it possible to reduce the dark counts by using short-gate pulse durations, and to discriminate the avalanche signals at low thresholds. The spike-cancellation single-photon detection at the optimized temperature produced a detection efficiency of 20\% with a dark-count probability of 3.4 × 10-7 per pulse. With such a single-photon detector, a stable single-photon routing was realized in 155 km optical fibers with the average photon number 〈n〉 = 0.1 per pulse, exhibiting a fringe contrast of 87\%.",

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T1 - High performance of gated-mode single-photon detector at 1.55 μm

AU - Wu, Guang

AU - Zhou, Chunyuan

AU - Chen, Xiuliang

AU - Zeng, Heping

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Y1 - 2006/9/1

N2 - High performances of single-photon detection at 1.55 μm were achieved by operating InGaAs/InP avalanche photodiodes in the gated mode at the optimized temperature. As short pulses used in the gated-mode detection produce strong spikes, a transformer-based method was invented to cancel the spikes, which makes it possible to reduce the dark counts by using short-gate pulse durations, and to discriminate the avalanche signals at low thresholds. The spike-cancellation single-photon detection at the optimized temperature produced a detection efficiency of 20% with a dark-count probability of 3.4 × 10-7 per pulse. With such a single-photon detector, a stable single-photon routing was realized in 155 km optical fibers with the average photon number 〈n〉 = 0.1 per pulse, exhibiting a fringe contrast of 87%.

AB - High performances of single-photon detection at 1.55 μm were achieved by operating InGaAs/InP avalanche photodiodes in the gated mode at the optimized temperature. As short pulses used in the gated-mode detection produce strong spikes, a transformer-based method was invented to cancel the spikes, which makes it possible to reduce the dark counts by using short-gate pulse durations, and to discriminate the avalanche signals at low thresholds. The spike-cancellation single-photon detection at the optimized temperature produced a detection efficiency of 20% with a dark-count probability of 3.4 × 10-7 per pulse. With such a single-photon detector, a stable single-photon routing was realized in 155 km optical fibers with the average photon number 〈n〉 = 0.1 per pulse, exhibiting a fringe contrast of 87%.

KW - Photon counting

KW - Quantum cryptography

KW - Single-photon detection

KW - Single-photon routing

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DO - 10.1016/j.optcom.2006.03.053

M3 - 文章

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JO - Optics Communications

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High performance of gated-mode single-photon detector at 1.55 μm

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Keywords

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