… We convert heralded single photons at 780 nm from a rubidium-based quantum memory to
the telecommunication … correlations between the converted photon and the heralding signal. …

… vector mismatch between the sum frequency beam and the two input beams, can enable
highly efficient upconversion 3 , with near unity conversion efficiencies achieved in periodically …

… photons emitted by a nitrogenvacancy (NV) defect in diamond. By means of difference frequency
generation, we convert spin-selective photons … telecommunication band. The successful …

… Here, we report the interference of photons … frequency conversion to the telecom L band.
We find a visibility of 0.79 ± 0.03 and an indistinguishability between converted NV photons …

… frequency conversion scheme to generate O-band 1287 nm single photons using the
photons … We use two cascaded quantum frequency conversion stages to avoid spontaneous …

… quantum interface of frequency down-conversion from visible to telecommunication bands by
using … We achieved the conversion of a picosecond visible photon at 780 nm to a 1,522-nm …

… photon detectors for telecommunication wavelength bands is … of single photons in the NIR
telecommunication wavelengths… optical medium to convert the wavelength of photons in the …

… to the telecommunications band. With improved input coupling and higher input pump peak
powers, we expect our interface to be ready for frequency conversion of true single photon …

… of quantum nodes are usually much higher than that of flying photonic … frequency conversion
(QFC) [2,3] of the photonic frequency between the quantum nodes and the flying photonic …

… frequency conversion between the telecom band and visible band with 0.14 on-chip (photon
flux) conversion … The demonstrated strong coupling between photons of different colors is of …