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Proceedings Article

Low noise up-conversion single photon detector and its applications in quantum information systems

[+] Author Affiliations
Lijun Ma, Oliver Slattery, Alan Mink, Xiao Tang

National Institute of Standards and Technology (USA)

Proc. SPIE 7465, Quantum Communications and Quantum Imaging VII, 74650W (August 26, 2009); doi:10.1117/12.824497
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From Conference Volume 7465

  • Quantum Communications and Quantum Imaging VII
  • Ronald E. Meyers; Yanhua Shih; Keith S. Deacon
  • San Diego, CA | August 02, 2009

abstract

We developed low-noise up-conversion single photon detectors for 1310 nm based on a periodically-poled LiNbO3 (PPLN) waveguide. The low-noise feature is achieved by using a pulsed optical pump at a wavelength longer than the signal wavelength. The detectors were used in a quantum key distribution (QKD) systems based on polarization encoding, measurement for entangled photon pairs and spectrum measurement at single photon levels. In this paper, the overall detection efficiency and noise level of the detectors are characterized and the polarization and wavelength sensitivity of the detection efficiency is analyzed. The applications of this detector in quantum information systems are also described.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Lijun Ma ; Oliver Slattery ; Alan Mink and Xiao Tang
"Low noise up-conversion single photon detector and its applications in quantum information systems", Proc. SPIE 7465, Quantum Communications and Quantum Imaging VII, 74650W (August 26, 2009); doi:10.1117/12.824497; http://dx.doi.org/10.1117/12.824497


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