High-fidelity frequency down-conversion of visible entangled photon pairs with superconducting single-photon detectors
Journal Article
·
· AIP Conference Proceedings
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan)
- Advanced ICT Research Institute, National Institute of Information and Communications Technology (NICT), Kobe 651-2492 (Japan)
- Advanced ICT Research Institute, National Institute of Information and Communications Technology (NICT), Koganei, Tokyo 184-8795 (Japan)
- Photon Science Center, The University of Tokyo, Bunkyo-ku, 113-8656 (Japan)
We experimentally demonstrate a high-fidelity visible-to-telecommunicationwavelength conversion of a photon by using a solid-state-based difference frequency generation. In the experiment, one half of a pico-second visible entangled photon pair at 780 nm is converted to a 1522-nm photon. Using superconducting single-photon detectors with low dark count rates and small timing jitters, we observed a fidelity of 0.93±0.04 after the wavelength conversion.
- OSTI ID:
- 22390705
- Journal Information:
- AIP Conference Proceedings, Vol. 1633, Issue 1; Conference: 11. International Conference on Quantum Communication, Measurement and Computation, Vienna (Austria), 30 Jul - 3 Aug 2012; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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