The state of the art of optical waveguide fabrication in lithium niobate is reviewed, with
particular emphasis on new technologies and recent applications. The attention is mainly …

Spontaneous parametric down-conversion (SPDC) is one of the most versatile nonlinear
optical techniques for the generation of entangled and correlated single-photon pairs …

Over the last two decades, integrated photonics has profoundly revolutionized the domain of
quantum technologies. The ongoing second quantum revolution stands as a timely …

We demonstrate second harmonic generation in quasi phase-matched waveguide
structures fabricated by direct laser writing. Circular waveguides are inscribed in z-cut …

Lithium niobate (LiNbO 3) serves as one of the most competitive materials in nonlinear
integrated photonics and becomes a key platform for the realization of integrated optical …

We investigate wavefront engineering of photon pairs generated through spontaneous
parametric down conversion in lithium niobate-based nonlinear photonic crystals (NPCs) …

Photons with complicated spatial mode structures can be applied for different quantum
information tasks. Here, we show the entanglement of photons with complex singularity …

The theoretical and experimental investigation results of the generation of the polarization-
entangled photon pairs operating at visible wavelengths are reported. The generation of …

High-dimensional entanglement of optical angular momentum has shown its enormous
potential for increasing robustness and data capacity in quantum communication and …

量子信息科技的进步, 在很大程度上依赖于传统材料的成熟与发展. 近年来,
铌酸锂成为量子器件的重要基础材料, 在量子科技领域具有巨大的应用潜力 …