Bright ultra-broadband fiber-based biphoton source

Maksim A. Smirnov; Ilya V. Fedotov; Anastasia M. Smirnova; Albert F. Khairullin; Andrei B. Fedotov; Sergey A. Moiseev

doi:10.1364/OL.524201

Bright ultra-broadband fiber-based biphoton source

Optics 2025-07-17 v1

Authors: Maksim A. Smirnov , Ilya V. Fedotov , Anastasia M. Smirnova , Albert F. Khairullin , Andrei B. Fedotov , Sergey A. Moiseev

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Abstract

In this Letter, we report a first experimental realization of bright ultra-broadband (180 THz) fiber-based biphoton source with widely spectrally separated signal and idler photons. Such a two-photon source is realized due to the joint use of broadband phase-matching of interacting light waves and high optical nonlinearity of a silica-core photonic crystal fiber. The high performance of the developed fiber source identifies it as an important and useful tool for a wide range of optical quantum applications.

Keywords

photon pair generation single-photon sources quantum optics

Cite

@article{arxiv.2403.08571,
  title  = {Bright ultra-broadband fiber-based biphoton source},
  author = {Maksim A. Smirnov and Ilya V. Fedotov and Anastasia M. Smirnova and Albert F. Khairullin and Andrei B. Fedotov and Sergey A. Moiseev},
  journal= {arXiv preprint arXiv:2403.08571},
  year   = {2025}
}

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