UNIGE document Chapitre d'actes
previous document  unige:36630  next document
add to browser collection
Title

2.23 GHz gating InGaAs/InP single-photon avalanche diode for quantum key distribution

Authors
Published in Itzler, M. A. & Campbell J. C. Advanced Photon Counting Techniques IV. Orlando (Florida) - 5th April 2010 - SPIE Press. 2010
Collection SPIE Proceedings; 7681
Abstract We implement an InGaAs/InP single-photon avalanche diode (SPAD) for single-photon detection with the fastest gating frequency reported so far, of 2.23GHz, which approaches the limit given by the bandwidth of the SPAD - 2.5 GHz. We propose a useful way to characterize the afterpulsing distribution for rapid gating that allows for easy comparison with conventional gating regimes. We compare the performance of this rapid gating scheme with free-running detector and superconducting single-photon detector (SSPD) for the coherent one-way quantum key distribution (QKD) protocol. The rapid gating system is well suited for both high-rate and long-distance QKD applications, in which Mbps key rates can be achieved for distances less than 40km with 50 ns deadtime and the maximum distance is limited to ~190km with 5 μs deadtime. These results illustrate that the afterpulsing is no longer a limiting factor for QKD.
Keywords Avalanche photodiodesIndium gallium arsenideQuantum key distributionSingle photonSensorsSuperconductors
Identifiers
Full text
Structures
Citation
(ISO format)
ZHANG, Jun et al. 2.23 GHz gating InGaAs/InP single-photon avalanche diode for quantum key distribution. In: Itzler, M. A. & Campbell J. C. (Ed.). Advanced Photon Counting Techniques IV. Orlando (Florida). [s.l.] : SPIE Press, 2010. (SPIE Proceedings; 7681) https://archive-ouverte.unige.ch/unige:36630

216 hits

0 download

Update

Deposited on : 2014-05-13

Export document
Format :
Citation style :