Ultra-fast Hong-Ou-Mandel interferometry via temporal filtering.

@article{Tsujimoto2021UltrafastHI,
  title={Ultra-fast Hong-Ou-Mandel interferometry via temporal filtering.},
  author={Yoshiaki Tsujimoto and Kentaro Wakui and Mikio Fujiwara and Masahide Sasaki and Masahiro Takeoka},
  journal={Optics express},
  year={2021},
  volume={29 23},
  pages={
          37150-37160
        }
}
Heralded single photons (HSPs) generated by spontaneous parametric down-conversion (SPDC) are useful resource to achieve various photonic quantum information processing. Given a large-scale experiment which needs multiple HSPs, increasing the generation rate with suppressing higher-order pair creation is desirable. One of the promising ways is to use a pump laser with a GHz-order repetition rate. In such a high repetition rate regime, however, single-photon detectors can only partially identify… 

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