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Proceedings Paper

Low noise up-conversion single photon detector and its applications in quantum information systems
Author(s): Lijun Ma; Oliver Slattery; Alan Mink; Xiao Tang
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Paper 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.

Paper Details

Date Published: 26 August 2009
PDF: 13 pages
Proc. SPIE 7465, Quantum Communications and Quantum Imaging VII, 74650W (26 August 2009); doi: 10.1117/12.824497
Show Author Affiliations
Lijun Ma, National Institute of Standards and Technology (United States)
Oliver Slattery, National Institute of Standards and Technology (United States)
Alan Mink, National Institute of Standards and Technology (United States)
Xiao Tang, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 7465:
Quantum Communications and Quantum Imaging VII
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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