High coherence photon pair source for quantum communication

Matthaeus Halder; Alexios Beveratos; Rob T Thew; Corentin Jorel; Hugo Zbinden; Nicolas Gisin

doi:10.1088/1367-2630/10/2/023027

High coherence photon pair source for quantum communication

Quantum Physics 2008-02-19 v1

Authors: Matthaeus Halder , Alexios Beveratos , Rob T Thew , Corentin Jorel , Hugo Zbinden , Nicolas Gisin

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Abstract

This paper reports a novel single mode source of narrow-band entangled photon pairs at telecom wavelengths under continuous wave excitation, based on parametric down conversion. For only 7 mW of pump power it has a created spectral radiance of 0.08 pairs per coherence length and a bandwidth of 10 pm (1.2 GHz). The effectively emitted spectral brightness reaches 3.9*10^5 pairs /(s pm). Furthermore, when combined with low jitter single photon detectors, such sources allow for the implementation of quantum communication protocols without any active synchronization or path length stabilization. A HOM-Dip with photons from two autonomous CW sources has been realized demonstrating the setup's stability and performance.

Keywords

photon pair generation single-photon sources spontaneous parametric down-conversion

Cite

@article{arxiv.0710.1143,
  title  = {High coherence photon pair source for quantum communication},
  author = {Matthaeus Halder and Alexios Beveratos and Rob T Thew and Corentin Jorel and Hugo Zbinden and Nicolas Gisin},
  journal= {arXiv preprint arXiv:0710.1143},
  year   = {2008}
}

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12 pages, 4 figures

High coherence photon pair source for quantum communication

Abstract

Keywords

Cite

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