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arXiv · 1711.09678

Heralded generation of high-purity ultrashort single photons in programmable temporal shapes

Vahid Ansari·Emanuele Roccia·Matteo Santandrea·Mahnaz Doostdar·Christof Eigner·Laura Padberg·Ilaria Gianani·Marco Sbroscia·John M. Donohue·Luca Mancino·Marco Barbieri·Christine Silberhorn
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Abstract

We experimentally demonstrate a source of nearly pure single photons in arbitrary temporal shapes heralded from a parametric down-conversion (PDC) source at telecom wavelengths. The technology is enabled by the tailored dispersion of in-house fabricated waveguides with shaped pump pulses to directly generate the PDC photons in on-demand temporal shapes. We generate PDC photons in Hermite-Gauss and frequency-binned modes and confirm a minimum purity of 0.81, even for complex temporal shapes.

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Vahid Ansari, Emanuele Roccia, Matteo Santandrea, Mahnaz Doostdar, Christof Eigner, Laura Padberg, Ilaria Gianani, Marco Sbroscia, John M. Donohue, Luca Mancino, Marco Barbieri, Christine Silberhorn. 2017-11-27. Heralded generation of high-purity ultrashort single photons in programmable temporal shapes. https://doi.org/10.1364/oe.26.002764

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