Wide-band quantum interface for visible-to-telecommunication wavelength conversion

Details Wide-band quantum interface for visible-to-telecommunication wavelength conversion Wide-band quantum interface for visible-to-telecommunication wavelength conversion

2011-06-09

arxiv.org/abs/1106.1758v1

Nature Communications 2 537 (2011)

Physics

Quantum Physics

5 pages, 4 figures

Scientific paper

10.1038/ncomms1544

We perform the first demonstration of a quantum interface for frequency down-conversion from visible to telecommunication bands by using a nonlinear crystal. This interface has a potential to work over wide bandwidths, leading to a high-speed interface of frequency conversion. We achieve the conversion of a pico-second visible photon at 780 nm to a 1522-nm photon, and observe that the conversion process retain entanglement between the down-converted photon and another photon.

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