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

Rikizo Ikuta; Yoshiaki Kusaka; Tsuyoshi Kitano; Hiroshi Kato; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto

doi:10.1038/ncomms1544

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

Quantum Physics 2011-12-02 v1

Authors: Rikizo Ikuta , Yoshiaki Kusaka , Tsuyoshi Kitano , Hiroshi Kato , Takashi Yamamoto , Masato Koashi , Nobuyuki Imoto

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Abstract

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.

Keywords

quantum photonics frequency comb spectroscopy

Cite

@article{arxiv.1106.1758,
  title  = {Wide-band quantum interface for visible-to-telecommunication wavelength conversion},
  author = {Rikizo Ikuta and Yoshiaki Kusaka and Tsuyoshi Kitano and Hiroshi Kato and Takashi Yamamoto and Masato Koashi and Nobuyuki Imoto},
  journal= {arXiv preprint arXiv:1106.1758},
  year   = {2011}
}

Comments

5 pages, 4 figures

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