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arXiv · 1507.06089

Quantum and classical telecommunication channel multiplexing

Andreas Lenhard·José Brito·Stephan Kucera·Matthias Bock·Jürgen Eschner·Christoph Becher
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Abstract

We demonstrate the multiplexing of a classical coherent and a quantum state of light in a single telecommunciation fiber. For this purpose we make use of spontaneous parametric down conversion and quantum frequency conversion to generate photon pairs at 854 nm and the telecom O-band. The herald photon triggers a telecom C-band laser pulse. The telecom single photon and the laser pulse are combined and coupled to a standard telecom fiber. Low background time correlation of the classical and quantum signal behind the fiber shows successful telecommunication channel multiplexing.

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Andreas Lenhard, José Brito, Stephan Kucera, Matthias Bock, Jürgen Eschner, Christoph Becher. 2015-07-22. Quantum and classical telecommunication channel multiplexing. https://doi.org/10.1007/s00340-015-6284-9

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