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arXiv · 1006.4350

Quantum Frequency Translation of Single-Photon States in Photonic Crystal Fiber

H. J. McGuinness·M. G. Raymer·C. J. McKinstrie·S. Radic
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Abstract

We experimentally demonstrate frequency translation of a nonclassical optical field via the Bragg scattering four-wave mixing process in a photonic crystal fiber (PCF). The high nonlinearity and the ability to control dispersion in PCF enable efficient translation between photon channels within the visible to-near-infrared spectral range, useful in quantum networks. Heralded single photons at 683 nm were translated to 659 nm with an efficiency of $28.6 \pm 2.2$ percent. Second-order correlation measurements on the 683-nm and 659-nm fields yielded $g^{(2)}_{683}(0) = 0.21 \pm 0.02$ and $g^{(2)}_{659}(0) = 0.19 \pm 0.05$ respectively, showing the nonclassical nature of both fields.

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H. J. McGuinness, M. G. Raymer, C. J. McKinstrie, S. Radic. 2010-06-23. Quantum Frequency Translation of Single-Photon States in Photonic Crystal Fiber. https://doi.org/10.1103/physrevlett.105.093604

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