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.
Ansari, V., Roccia, E., Santandrea, M., Doostdar, M., Eigner, C., Padberg, L., et al. (2018). Heralded generation of high-purity ultrashort single photons in programmable temporal shapes. OPTICS EXPRESS, 26(3), 2764-2774 [10.1364/OE.26.002764].
Heralded generation of high-purity ultrashort single photons in programmable temporal shapes
Roccia, E.;Gianani, I.;Sbroscia, M.;Mancino, L.;Barbieri, M.;
2018-01-01
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
