Room temperature single-photon detectors for high bit rate quantum key distribution
- 13 January 2014
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 104 (2), 021101
- https://doi.org/10.1063/1.4855515
Abstract
We report room temperature operation of telecom wavelength single-photon detectors for high bit rate quantum key distribution (QKD). Room temperature operation is achieved using InGaAs avalanche photodiodes integrated with electronics based on the self-differencing technique that increases avalanche discrimination sensitivity. Despite using room temperature detectors, we demonstrate QKD with record secure bit rates over a range of fiber lengths (e.g., 1.26 Mbit/s over 50 km). Furthermore, our results indicate that operating the detectors at room temperature increases the secure bit rate for short distances.Keywords
This publication has 27 references indexed in Scilit:
- Efficient decoy-state quantum key distribution with quantified securityOptics Express, 2013
- A quantum access networkNature, 2013
- Coexistence of High-Bit-Rate Quantum Key Distribution and Data on Optical FiberPhysical Review X, 2012
- 2 GHz clock quantum key distribution over 260 km of standard telecom fiberOptics Letters, 2012
- Field test of quantum key distribution in the Tokyo QKD NetworkOptics Express, 2011
- Continuous operation of high bit rate quantum key distributionApplied Physics Letters, 2010
- The security of practical quantum key distributionReviews of Modern Physics, 2009
- The SECOQC quantum key distribution network in ViennaNew Journal of Physics, 2009
- Dense wavelength multiplexing of 1550 nm QKD with strong classical channels in reconfigurable networking environmentsNew Journal of Physics, 2009
- Focus on Quantum Cryptography: Theory and PracticeNew Journal of Physics, 2009