Low jitter up-conversion detectors for telecom wavelength GHz QKD
By R. Thew, S. Tanzilli, L. Krainer, S. Zeller, A. Rochas, I. Rech, S. Cova, H. Zbinden, Nicolas Gisin. 2006
150 citations recorded by the source corpus.
We have developed a hybrid single photon detection scheme for telecom wavelengths based on nonlinear sum-frequency generation and silicon single-photon avalanche diodes (SPADs). The SPAD devices employed have been designed to have very narrow temporal response, i.e. low jitter ∼40 ps, which we can exploit for increasing the allowable bit rate for quantum key distribution. The wavelength conversion is obtained using periodically poled lithium niobate waveguides (W/Gs). The inherently high efficiency of these W/Gs allows us to use a continuous wave laser to seed the nonlinear conversion so as to have a continuous detection scheme. We also present a 1.27 GHz qubit repetition rate, one-way phase encoding, quantum key distribution experiment operating at telecom wavelengths that takes advantage of this detection scheme. The proof-of-principle experiment shows a system capable of MHz raw count rates with a QBER less than 2% and estimated secure key rates greater than 100 kbit s−1 over 25 km.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Instrumentation
View Paper: https://www.semanticscholar.org/paper/22e9038a411fb53faf3896e6a13875cc74a76a8e
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In Atomic and Molecular Physics, and Optics
- Momtchil Peev
- Nicolas J. Cerf
- Miloslav Dusek
- H. Bechmann-Pasquinucci
- Valerio Scarani
- Norbert Lutkenhaus
- Mark M. Wilde
- Hoi-Kwong Lo
In Electrical and Electronic Engineering
- Miloslav Dusek
- H. Bechmann-Pasquinucci
- Nicolas J. Cerf
- Norbert Lutkenhaus
- Valerio Scarani
- Momtchil Peev
Citations in the corpus
- Single-photon detectors for optical quantum information applications (2009, unknown): “66).”
- The security of practical quantum key distribution (2008, methodology): “First: instead of direct use of InGaAs APDs, one can detect signals at telecom wavelengths (1310 nm and 1550 nm) by applying parametric frequency up-conversion and then using efficient silicon APDs (Diamanti et al., 2005; Thew et al., 2006).”