Recent years have witnessed significant progress in quantum communication and quantum
internet with the emerging quantum photonic chips, whose characteristics of scalability …

Quantum cryptography is arguably the fastest growing area in quantum information science.
Novel theoretical protocols are designed on a regular basis, security proofs are constantly …

A thin-film periodically poled lithium niobate waveguide was designed and fabricated which
generates entangled photon pairs at telecommunications wavelengths with high …

Integrated quantum photonic applications, providing physically guaranteed communications
security, subshot-noise measurement, and tremendous computational power, are nearly …

The ability to generate complex optical photon states involving entanglement between
multiple optical modes is not only critical to advancing our understanding of quantum …

We propose a photonic crystal nanocavity design with self-similar electromagnetic boundary
conditions, achieving ultrasmall mode volume (V eff). The electric energy density of a cavity …

Photonic integrated circuits provide a compact and stable platform for quantum photonics.
Here we demonstrate a silicon photonics quantum key distribution (QKD) encoder in the first …

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 …

Integrated lithium niobate (LN) photonic circuits have recently emerged as a promising
candidate for advanced photonic functions such as high-speed modulation, nonlinear …

Integrated nonlinear photonics provides transformative capabilities for controlling,
enhancing and manipulating material nonlinearities in miniaturized on-chip platforms. The …