High-dimensional photon states (qudits) are pivotal to enhance the information capacity,
noise robustness, and data rates of quantum communications. Time-bin entangled qudits …

This article reports a novel design of a compact tunable resonance filter with a highly
extinguished and ultra-broad out-of-band rejection for on-chip amplified spontaneous noise …

We study multiplexed quantum frequency conversion (m-QFC) on a single waveguide,
where a single pump beam simultaneously converts multiple signal beams at distinct …

We demonstrate an unprecedentedly bright heralded single-photon source with ideal single-
photon purity. The source is based on spontaneous four-wave mixing in silicon spiral …

We derive an explicit theoretical limit of purity for any heralded single-photon source, and
subsequently demonstrate the ideal purity on an unprecedentedly bright source exceeding …

Recent advancements in thin-film lithium niobate technology have opened new avenues for
creating high-performance photonic devices. Thin-film lithium niobate combines the …

Efficient nonlinear optical functions on chip will escalate the utilities and performance of
photonic integrated circuits for a breadth of classical and quantum applications. Due to its …