Assisted by the rapid development of photonic integrated circuits, scalable and versatile chip-
based quantum light sources with nonlinear optics are increasingly tangible for real-world …

We experimentally demonstrate the direct generation of polarization-entangled photon pairs
in an optical fiber at room temperature by exploiting type-II phase-matched spontaneous …

The generation of 236 mW of second-harmonic power in a 32-cm-long periodically poled
silica fiber, corresponding to an average conversion efficiency of 15.2±0.5%, is reported …

A loophole-free violation of Bell inequalities is of fundamental importance for demonstrating
quantum<? format?> nonlocality and long-distance device-independent secure …

We present experimental demonstrations of two-photon interference involving temporally
separated photons within two types of interferometers: a Mach-Zehnder interferometer and a …

Self-injection locking to an external fiber cavity is an efficient technique enabling drastic
linewidth narrowing and selfstabilization of semiconductor lasers. We introduce a simple …

We treat spontaneous parametric downconversion in a periodically poled fiber, quasi-phase
matched to allow for the generation of photon pairs at wavelengths within the low-loss …

Sources of single photons in pure quantum states are essential to many quantum optics
applications. We explore a technique, known as group-velocity matching, that enables the …

We experimentally demonstrate a simple method to measure the biphoton joint spectrum by
mapping the spectral information onto the temporal domain using a dispersive medium …

We present an optical microfiber-lithium niobate on insulator (MF-LNOI) hybrid waveguide
for efficient second-order nonlinear processes. The structure combines the advantages of …