We present a source of polarization-entangled photon pairs suitable for the implementation
of long-distance quantum communication protocols using quantum memories. Photon pairs …

We demonstrate a compact photon pair source based on a periodically poled lithium niobate
nonlinear crystal in a short cavity. This approach provides efficient, low-loss, mode selection …

Frequency upconversion for single photons at telecom wavelengths is important to
simultaneously meet the different wavelength requirements for long-distance …

In a hybrid quantum network, the linking of two types of quantum nodes through photonic
channels requires excellent matching of the central frequency and bandwidth between both …

Quantum emitters generating individual entangled photon pairs (IEPP) have significant
fundamental advantages over schemes that suffer from multiple photon emission, or …

The development of the quantum computer challenges the security of classical
communication. This is due to the security of classical encryption being based on the …

Quantum physical phenomena are important not only from a fundamental point of view
allowing to probe the limits of our understanding. Their application in modern technologies …

Integrated quantum optics is a young field of research, and its impact on real-world quantum
applications is growing rapidly. Efficient, compact, scalable and longterm-stable sources for …