1550 nm Single-Photon Detection for the Demonstration of Unconditionally Secure Fiber-Optic Quantum Key Distribution over 50 km(<Special Issue>Recent Progress in Photon Detection Technology)
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概要
- 論文の詳細を見る
The performance of an indium-gallium-arsenide avalanche photodiode serving as a 1550nm single-photon detector is investigated. Quantum efficiency is evaluated for laser pulses with an average of < 0.015 photons per pulse, which are important for the demonstration of unconditionally secure quantum key distribution [G. Brassard et al.: Phys. Rev. Lett. 85, 6, p.1330 (2000)]. An operating temperature of 243K is achieved by thermo-electrical cooling, yielding a quantum efficiency of 18% with a dark-count probability per gate of 2.8 x 10^<-5>. The results obtained here guarantee unconditionally secure fiber-optic quantum key distribution over 50km.
- 社団法人電子情報通信学会の論文
- 2003-09-01
著者
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Kaji Ryosaku
National Institute Of Advanced Industrial Science And Technology (aist)
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Yoshizawa Akio
National Institute Of Advanced Industrial Science And Technology (aist)
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Yoshizawa Akio
National Inst. Of Advanced Industrial Sci. And Technol. (aist) Ibaraki Jpn
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Tsuchida Hidemi
National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba 305-
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Tsuchida Hidemi
National Institute Of Advanced Industrial Science And Technology (aist)
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Tsuchida Hidemi
National Inst. Of Advanced Industrial Sci. And Technol. (aist) Ibaraki Jpn
関連論文
- Accidental Coincidence Counts Observed in Mandel Dip Measurement Using Independently Produced Photon Pairs at 1550 nm
- 10.5 km Fiber-Optic Quantum Key Distribution at 1550 nm with a Key Rate of 45 kHz
- Two-Coherent-State Quantum Key Distribution Using a Large Reference Pulse for Security Enhancement
- 1550 nm Single-Photon Detection for the Demonstration of Unconditionally Secure Fiber-Optic Quantum Key Distribution over 50 km(Recent Progress in Photon Detection Technology)
- A Method of Discarding After-Pulses in Single-Photon Detection for Quantum Key Distribution
- Violation of Bell’s Inequality in 1550 nm Band without Subtraction of Accidental Coincidences
- Timing Noise Measurement of 160-GHz Optical Pulses by Optoelectronic Harmonic Mixing(Ultrafast Photonics)
- Ultrafast All-Optical Refractive Index Modulation in Intersubband Transition Switch Using InGaAs/AlAs/AlAsSb Quantum Well
- Two-photon Interference at 1550 nm Using Two Periodically Poled Lithium Niobate Waveguides
- Direct Observation of Cross-Phase-Modulation-Induced Nonlinear Phase Noise
- Simulation of Cross Phase Modulation in Intersubband Transition of InGaAs/AlAs/AlAsSb Coupled Quantum Wells Based on Vector Signal Analysis of Electrical Signals
- Discharge Pulse Counting for Low-Noise Single-Photon Detection at 1550 nm Using InGaAs Avalanche Photodiode Cooled to 130 K
- Reconstruction of Photon Number Distribution without Relying on Photon Number-Resolving Detector
- Timing Adjustment of Incoming Photons in Gated-Mode Single-Photon Detection at 1550 nm