Due to its properties, lithium niobate is one of the most suitable material platforms for the
implementation of integrated optical quantum circuits. With the commercialization of lithium …

Quantum light generated through spontaneous four-wave mixing (SFWM) process in
nonlinear materials, such as entangled photon pairs and single photons, is an important …

Entangled-photon pairs are an essential resource for quantum-information technologies.
Chip-scale sources of entangled pairs have been integrated with various photonic platforms …

Quantum technology is poised to enable a step change in human capability for computing,
communications and sensing. Photons are indispensable as carriers of quantum information …

Silicon photonics has found a profound place among emerging technologies in the past few
decades due to several advantages. Due to a series of breakthroughs and increased …

Integrated photonic circuits have become an attractive platform for the quantum information
processing, paving the way for quantum information management with scalable device. In …

Lithium niobate on insulator (LNOI) is a new photonic integrated platform that provides high
optical confinement and retains the inherent excellent properties of lithium niobate (LN) …

We report an integrated tunable-bandwidth optical filter with a passband to stop-band ratio
of over 96 dB using a single silicon chip with an ultra-compact footprint. The integrated filter …

We demonstrate controlled-NOT (CNOT) operation of a silicon nitride photonic integrated
circuit using path-entangled photon pairs from a silicon-photonic integrated circuit as logical …

High coincidence-to-accidental ratio (CAR) is crucial for photon-pair sources (PPSs)
integrated with pump reject filters (PRFs) in silicon, but CAR values currently reported for …