Entangled photon-pair generation in periodically-poled thin-film lithium niobate waveguides

Abstract

We report measurements of time-frequency entangled photon pairs and heralded single photons at telecommunications wavelengths, generated using a periodically-poled, lithium niobate on insulator (LNOI) waveguide pumped optically by a diode laser. We achieve a high Coincidences-to-Accidentals Ratio (CAR) at high pair brightness, a low value of the conditional self-correlation function [$g^{(2)}$(0)], and high two-photon energy-time Franson interferometric visibility, which demonstrate the high quality of the entangled photon pairs and heralded single photons.

References in corpus (7)

• Experimental quantum teleportation
• Photonic quantum technologies
• Ground-to-satellite quantum teleportation
• An Efficient Integrated Two-Color Source for Heralded Single Photons
• An extremely low-noise heralded single-photon source: a breakthrough for quantum technologies
• Characterization of the non-classical nature of conditionally prepared single photons
• Second harmonic microscopy of poled x-cut thin film lithium niobate: Understanding the contrast mechanism

Cited by in corpus (59)

• Integrated photonics on thin-film lithium niobate
• Lithium tantalate electro-optical photonic integrated circuits for high volume manufacturing
• Electrically-pumped high-power laser transmitter integrated on thin-film lithium niobate
• Ultra-bright entangled-photon pair generation from an AlGaAs-on-insulator microring resonator
• Intense optical parametric amplification in dispersion engineered nanophotonic lithium niobate waveguides
• Ultra-broadband Entangled Photons on a Nanophotonic Chip
• Ultra-low-power second-order nonlinear optics on a chip
• High-performance quantum entanglement generation via cascaded second-order nonlinear processes
• Ultra-bright multiplexed energy-time entangled photon generation from lithium niobate on insulator chip
• Entanglement-Based Quantum Information Technology
• 648 Hilbert space dimensionality in a biphoton frequency comb
• High efficiency second harmonic generation of blue light on thin film lithium niobate
• On-chip ultra-narrow-linewidth single-mode microlaser on lithium niobate on insulator
• Zero-Added-Loss Entangled Photon Multiplexing for Ground- and Space-Based Quantum Networks
• Efficient self-imaging grating couplers on a Lithium-Niobate-On-Insulator platform at near-visible and telecom wavelengths
• Quantum interferometers: principles and applications
• Room-temperature biphoton source with a spectral brightness near the ultimate limit
• Tunable and efficient ultraviolet generation in nanophotonic lithium niobate
• Efficient and tunable blue light generation using lithium niobate nonlinear photonics
• Spectrally multiplexed heralded single photon source at telecom-band
• InGaP ${\chi }^{(2)}$ integrated photonics platform for broadband, ultra-efficient nonlinear conversion and entangled photon generation
• Ultrabright Entanglement Based Quantum Key Distribution over a 404 km Optical Fiber
• Temporally-ultralong biphotons with a linewidth of 50 kHz
• Highly efficient visible and near-IR photon pair generation with thin-film lithium niobate
• Satellite Relayed Global Quantum Communication without Quantum Memory
• Photon Conversion in Thin-film Lithium Niobate Nanowaveguides: A Noise Analysis
• Demonstration of a low loss, highly stable and re-useable edge coupler for high heralding efficiency and low g^(2) (0) SOI correlated photon pair sources
• Energy-time and time-bin entanglement: past, present and future
• Certification of genuine time-bin and energy-time entanglement with integrated photonics
• Efficient generation of broadband photon pairs in shallow-etched lithium niobate nanowaveguide
• High-efficiency On-chip Quantum Photon Source in Modal Phase-matched Lithium Niobate Nanowaveguide
• Expanding the Quantum Photonic Toolbox in AlGaAsOI
• Quantum logical controlled-NOT gate in a lithium niobate-on-insulator photonic quantum walk
• Efficient Interaction of Heralded X-ray Photons with a Beam Splitter
• Quantifying the Coherent Interaction Length of Second-Harmonic Microscopy in Lithium Niobate Confined Nanostructures
• Fundamental charge noise in electro-optic photonic integrated circuits
• Graphene as a source of entangled plasmons
• Engineering AlGaAs-on-insulator towards quantum optical applications
• On-chip quantum interference between independent lithium niobate-on-insulator photon-pair sources
• Interpretable inverse-designed cavity for on-chip nonlinear and quantum optics
• Discrete frequency-bin entanglement generation via cascaded second-order nonlinear processes in Sagnac interferometer
• Entanglement distribution over 155 km metropolitan fiber using a CMOS-compatible silicon chip
• Ultralow-threshold thin-film lithium niobate optical parametric oscillator
• Amplification of cascaded downconversion by reusing photons with a switchable cavity
• Roadmap on Integrated Quantum Photonics
• Programmable Bell State Generation in an Integrated Thin Film Lithium Niobate Circuit
• Efficient erbium-doped thin-film lithium niobate waveguide amplifiers
• Heralding entangled optical photons from a microwave quantum processor
• Probing Ferroelectric Phase Transitions in Barium Titanate Single Crystals via $in-situ$ Second Harmonic Generation Microscopy
• Rubidium-Doped KTiOPO${}_4$ Waveguides as a Dual-Type Photon Pair Source
• High system efficiency nonlinear frequency conversion on thin-film lithium niobate
• Efficient high-quality photon pair generation in modal phase-matched thin-film lithium niobate micro-ring resonators
• Direct generation of two-pair frequency entanglement via dual periodic poling in lithium niobate waveguides
• A global quantum network with ground-based single-atom memories in optical cavities and satellite links
• Ultra-broadband spectral and polarisation entanglement using dispersion-engineered nanophotonic waveguides
• Protecting Heralded Single Photons Generated from Double-$\Lambda$ Biphoton Sources with Doppler-Broadened Atomic Media
• Lithium niobate microring with ultra-high Q factor above 10^8
• Scalable quantum interference in integrated lithium niobate nanophotonics
• On-Chip Generation of Co-Polarized and Spectrally Separable Photon Pairs