Quantum storage of entangled telecom-wavelength photons in an erbium-doped optical fibre

Abstract

The realization of a future quantum Internet requires processing and storing quantum information at local nodes, and interconnecting distant nodes using free-space and fibre-optic links. Quantum memories for light are key elements of such quantum networks. However, to date, neither an atomic quantum memory for non-classical states of light operating at a wavelength compatible with standard telecom fibre infrastructure, nor a fibre-based implementation of a quantum memory has been reported. Here we demonstrate the storage and faithful recall of the state of a 1532 nm wavelength photon, entangled with a 795 nm photon, in an ensemble of cryogenically cooled erbium ions doped into a 20 meter-long silicate fibre using a photon-echo quantum memory protocol. Despite its currently limited efficiency and storage time, our broadband light-matter interface brings fibre-based quantum networks one step closer to reality. Furthermore, it facilitates novel tests of light-matter interaction and collective atomic effects in unconventional materials.

6 pages, 3 Figures + Supplementary Information. The problem with the order of the references is fixed. appears in Nature Photonics (2015)

References in corpus (6)

• The Quantum Internet
• Quantum Computing
• Quantum Storage of Photonic Entanglement in a Crystal
• Approaches for a quantum memory at telecommunication wavelengths
• Investigations of Optical Coherence Properties in an Erbium-doped Silicate Fiber for Quantum State Storage
• Controlled Stark shifts in Er${}^{3+}$-doped crystalline and amorphous waveguides for quantum state storage

Cited by in corpus (58)

• Superconducting Nanowire Single-Photon Detectors for Quantum Information
• Towards real-world quantum networks: a review
• Indistinguishable telecom band photons from a single erbium ion in the solid state
• Storage of fiber-guided light in a nanofiber-trapped ensemble of cold atoms
• Multi-mode and long-lived quantum correlations between photons and spins in a crystal
• Storage and retrieval of ultrafast single photons using a room-temperature diamond quantum memory
• Highly efficient entanglement swapping and teleportation at telecom wavelength
• Realizing an entanglement-based multi-user quantum network with integrated photonics
• Hertz-rate metropolitan quantum teleportation
• On-demand storage of photonic qubits at telecom wavelengths
• High Resolution Optical Spectroscopy and Magnetic Properties of Yb3+ in Y2SiO5
• Storage and analysis of light-matter entanglement in a fibre-integrated system
• Quantum interferometers: principles and applications
• Initialisation protocol for efficient quantum memories using resolved hyperfine structure
• Entanglement Swapping with Independent Sources over an Optical Fibre Network
• Purcell enhancement of erbium ions in TiO${}_2$ on silicon nanocavities
• Precise tuning of single-photon frequency using optical single sideband modulator
• Single photon frequency conversion for frequency multiplexed quantum networks in the telecom band
• Quantum memories and the double-slit experiment: implications for astronomical interferometry
• Quantum storage of entangled photons at telecom wavelengths in a crystal
• Quantum state tomography of molecules by ultrafast diffraction
• Optical decoherence and spectral diffusion in an erbium-doped silica glass fiber featuring long-lived spin sublevels
• Transmission of light-matter entanglement over a metropolitan network
• Hyperfine Structure and Coherent Dynamics of Rare Earth Spins Explored with Electron-Nuclear Double Resonance at Sub-Kelvin Temperatures
• Recent advances in high-dimensional mode-locked quantum frequency combs
• Stark tuning of telecom single-photon emitters based on a single Er${}^{3+}$
• Energy-time and time-bin entanglement: past, present and future
• Potential of a Superconducting Photon Counter for Heterodyne Detection at Telecommunication Wavelength
• A universal, plug-and-play synchronisation scheme for practical quantum networks
• Long Light Storage Time in an Optical Fiber
• Experimental storage of photonic polarization entanglement in a broadband loop-based quantum memory
• Entanglement generation in a quantum network with finite quantum memory lifetime
• Generation of highly retrievable atom photon entanglement with a millisecond lifetime via a spatially multiplexed cavity
• Quantum networks using rare-earth ions
• Experimental observation of magnetic dimers in diluted Yb:YAlO${}_3$
• Pulse area theorem in a single mode waveguide and its application to photon echo and optical memory in Tm3+:Y3Al5O12
• Counter-propagating spectrally uncorrelated biphotons at 1550 nm generated from periodically poled MTiOXO4 (M = K, Rb, Cs; X = P, As)
• Broadband Quantum Memory in Atomic Ensembles
• Noise suppression in a temporal-multimode quantum memory entangled with a photon via asymmetrical photon-collection channel
• Frequency-multiplexed Hong-Ou-Mandel interference
• Extending the spin coherence lifetimes of ${}^{167}$Er${}^{3+}$$:$Y${}_2$SiO${}_5$ at subkelvin temperatures
• A fiber-integrated quantum memory for telecom light
• Remote Quantum Networks based on Quantum Memories
• Isolation of individual Er quantum emitters in anatase TiO${}_2$ on Si photonics
• Storage of telecom wavelength heralded single photons in a fiber cavity quantum memory
• Erbium-implanted WS2 flakes with room-temperature photon emission at telecom wavelengths
• Hole burning experiments and modeling in erbium-doped silica glass fibers down to millikelvin temperatures: evidence for ultra-long population storage
• Optical Spin Sensing and Metamagnetic Phase Control in the 2D Van der Waals Magnet Yb3+-Doped CrPS4
• Narrow-band photonic quantum entanglement with counterpropagating domain engineering
• Tunable quantum logic gate on photonic qubits with a ladder emitter
• Erbium Quantum Memory Platform with Long Optical Coherence via Back-End of Line Deposition on Foundry-Fabricated Photonics
• Revealing the Intrinsic Magnetism of Non-Magnetic Glasses
• Hybrid classical-quantum communication networks
• Highly Efficient and Broadband Optical Delay Line towards a Quantum Memory
• Tomographic imaging of complete quantum state of matter by ultrafast diffraction
• Photonic quantum information with time-bins: Principles and applications
• Storage of up-converted telecom photons in a doped crystal
• High efficiency photonic storage of single photons in cold atoms