Efficient generation of temporally shaped photons using nonlocal spectral filtering

@article{Averchenko2020EfficientGO,
  title={Efficient generation of temporally shaped photons using nonlocal spectral filtering},
  author={Valentin A. Averchenko and Denis Sych and Christoph Marquardt and Gerd Leuchs},
  journal={Physical Review A},
  year={2020}
}
We study the generation of single-photon pulses with the tailored temporal shape via nonlocal spectral filtering. A shaped photon is heralded from a time-energy entangled photon pair upon spectral filtering and time-resolved detection of its entangled counterpart. We show that the temporal shape of the heralded photon is defined by the time-inverted impulse response of the spectral filter and does not depend on the heralding instant. Thus one can avoid postselection of particular heralding… 

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