A source of polarization-entangled photon pairs interfacing quantum memories with telecom photons

Abstract

We present a source of polarization-entangled photon pairs suitable for the implementation of long-distance quantum communication protocols using quantum memories. Photon pairs with wavelengths 883 nm and 1338 nm are produced by coherently pumping two periodically poled nonlinear waveguides embedded in the arms of a polarization interferometer. Subsequent spectral filtering reduces the bandwidth of the photons to 240 MHz. The bandwidth is well-matched to a quantum memory based on an Nd:YSO crystal, to which, in addition, the center frequency of the 883 nm photons is actively stabilized. A theoretical model that includes the effect of the filtering is presented and accurately fits the measured correlation functions of the generated photons. The model can also be used as a way to properly assess the properties of the source. The quality of the entanglement is revealed by a visibility of V = 96.1(9)% in a Bell-type experiment and through the violation of a Bell inequality.

arXiv comment15 pages, 8 figures, 3 tables

References in corpus (34)

• Separability Criterion for Density Matrices
• Ultra-bright source of polarization-entangled photons
• Generation of Nonclassical Photon Pairs for Scalable Quantum Communication with Atomic Ensembles
• Multimode quantum memory based on atomic frequency combs
• Quantum Repeaters with Photon Pair Sources and Multi-Mode Memories
• Broadband waveguide quantum memory for entangled photons
• Quantum Storage of Photonic Entanglement in a Crystal
• Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer
• Quantum teleportation from a telecom-wavelength photon to a solid-state quantum memory
• Prospective applications of optical quantum memories
• Visible-to-telecom quantum frequency conversion of light from a single quantum emitter
• Probing multimode squeezing with correlation functions
• A Versatile Source of Single Photons for Quantum Information Processing
• Wide-band quantum interface for visible-to-telecommunication wavelength conversion
• Generation of Narrow-Band Polarization-Entangled Photon Pairs for Atomic Quantum Memories
• Ultranarrow-Band Photon Pair Source Compatible with Solid State Quantum Memories and Telecommunication Networks
• Heralded quantum entanglement between two crystals
• A Waveguide Frequency Converter Connecting Rubidium Based Quantum Memories to the Telecom C-Band
• Heralded single photon absorption by a single atom
• Quantum storage of polarization qubits in birefringent and anisotropically absorbing materials
• Quantum Storage of Heralded Single Photons in a Praseodymium Doped Crystal
• Waveguide-based OPO source of entangled photon pairs
• Schmidt Analysis of Pure-State Entanglement
• Downconversion quantum interface for a single quantum dot spin and 1550-nm single-photon channel
• An Efficient Integrated Two-Color Source for Heralded Single Photons
• Collinear source of polarization-entangled photon pairs at non-degenerate wavelengths
• Bell State Preparation using Pulsed Non-Degenerate Two-Photon Entanglement
• Post-selection free, integrated optical source of non-degenerate, polarization entangled photon pairs
• Three-color Sagnac source of polarization-entangled photon pairs
• A Monolithic Filter Cavity for Experiments in Quantum Optics
• Engineering integrated pure narrow-band photon sources
• Storage and retrieval of nonclassical photon pairs and conditional single photons generated by parametric down-conversion process
• Characterizing heralded single-photon sources with imperfect measurement devices
• Parametric down-conversion from a wave-equations approach: geometry and absolute brightness

Cited by in corpus (35)

• Chip-integrated visible-telecom photon pair sources for quantum communication
• Entangled Photon-Pair Sources based on three-wave mixing in bulk crystals
• Ultra-bright multiplexed energy-time entangled photon generation from lithium niobate on insulator chip
• Entanglement and teleportation between polarization and wave-like encodings of an optical qubit
• High-Rate Photon Pairs and Sequential Time-Bin Entanglement with Si${}_3$N${}_4$ Ring Microresonators
• Remote distribution of non-classical correlations over 1250 modes between a telecom photon and a ${}^{171}$Yb${}^{3+}$:Y${}_2$SiO${}_5$ crystal
• High-performance source of spectrally pure, polarization entangled photon pairs based on hybrid integrated-bulk optics
• Optical spin-wave storage in a solid-state hybridized electron-nuclear spin ensemble
• Polarization entanglement by time-reversed Hong-Ou-Mandel interference
• GHz detection rates and dynamic photon-number resolution with superconducting nanowire arrays
• Storage of hyperentanglement in a solid-state quantum memory
• Cavity enhanced telecom heralded single photons for spin-wave solid state quantum memories
• Quantification of multidimensional entanglement stored in a crystal
• Multiplexed entanglement generation over quantum networks using multi-qubit nodes
• Temporal multimode storage of entangled photon pairs
• Telecom-heralded single photon absorption by a single atom
• Experimental certification of millions of genuinely entangled atoms in a solid
• InGaP ${\chi }^{(2)}$ integrated photonics platform for broadband, ultra-efficient nonlinear conversion and entangled photon generation
• Entanglement and violation of classical inequalities in the Hawking radiation of flowing atom condensates
• Tomography of time-bin quantum states using time-resolved detection
• Novel Single-mode Narrow-band Photon Source of High Brightness for Hybrid Quantum Systems
• Numerical Investigation of Photon-Pair Generation in Periodically Poled MTiOXO4 (M = K, Rb, Cs; X = P, As)
• A novel single-crystal & single-pass source for polarisation- and colour-entangled photon pairs
• Nonclassical correlated deterministic single-photon pairs for a trapped atom in bimodal cavities
• Light-matter micro-macro entanglement
• Linear-Optic Heralded Photon Source
• A folded-sandwich polarization-entangled two-color photon pair source with large tuning capability for applications in hybrid quantum architectures
• An Integrated Photon-Pair Source with Monolithic Piezoelectric Frequency Tunability
• Emergent photon pair propagation in circuit QED with superconducting processors
• Few-photon transport via a multimode nonlinear cavity: theory and applications
• The role of volume and surface spontaneous parametric down-conversion in the generation of photon pairs in layered media
• Heterodyne spectrometer sensitivity limit for quantum networking
• Compact non-degenerate entangled-photon source and near-infrared-to-telecom quantum teleportation
• Optimizing Continuous-Wave-Pumped Entanglement-based QKD in Noisy Environments
• Viability of quantum communication across interstellar distances