Single photon sources are key components for quantum technologies such as quantum
communication, computing and metrology. A key challenge towards the realization of global …

We review the rapid recent progress in single-photon sources based on multiplexing
multiple probabilistic photon-creation events. Such multiplexing allows higher single-photon …

The generation of single photons in the mid-infrared spectral region is attracting the interest
of scientific and technological research, motivated by the potential improvements that many …

We present the realization of a highly efficient photon pair source based on spontaneous
parametric downconversion (SPDC) in a periodically poled lithium niobate (PPLN) ridge …

Photon pairs produced by parametric down-conversion or four-wave mixing can interfere
with each other in multiport interferometers or carry entanglement between distant nodes for …

Integrated photonics represents a technology that could greatly improve quantum
communication networks in terms of cost, size, scaling, and robustness. A key benchmark for …

Entangled photon pair sources based on bulk optics are approaching optimal design and
implementation, with high state fidelities, spectral purities and heralding efficiencies, but …

We report on the generation of indistinguishable photon pairs at telecom wavelengths based
on a type-II parametric down conversion process in a periodically poled potassium titanyl …

High-performance solid-state quantum sources in the telecom band are of paramount
importance for long-distance quantum communications and the quantum Internet by taking …

We introduce a method for shaping the spectral response of nonlinear light sources by
tailoring the quasi-phase matching. Our algorithm relies on engineering the poling to …