Gigahertz-Bandwidth Optical Memory in Pr${}^{3+}$:Y${}_2$SiO${}_5$

Abstract

We experimentally study a broadband implementation of the atomic frequency comb (AFC) rephasing protocol with a cryogenically cooled Pr${}^{3+}$:Y${}_2$SiO${}_5$ crystal. To allow for storage of broadband pulses, we explore a novel regime where the input photonic bandwidth closely matches the inhomogeneous broadening of the material $(\sim 5\text{GHz})$, thereby significantly exceeding the hyperfine ground and excited state splitting $(\sim 10\text{MHz})$. Through an investigation of different AFC preparation parameters, we measure a maximum efficiency of $10\%$ after a rephasing time of $12.5$ns. With a suboptimal AFC, we witness up to 12 rephased temporal modes.

References in corpus (27)

• The Quantum Internet
• Quantum Communication
• 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 memories: emerging applications and recent advances
• Prospective applications of optical quantum memories
• Demonstration of atomic frequency comb memory for light with spin-wave storage
• Dynamic decoherence control of a solid-state nuclear quadrupole qubit
• Efficient quantum memory using a weakly absorbing sample
• Advanced holeburning techniques for determination of hyperfine transition properties in inhomogeneously broadened solids applied to Pr3+:Y2SiO5
• Method of extending hyperfine coherence times in Pr^3+:Y_2SiO_5
• Quantum Storage of a Photonic Polarization Qubit in a Solid
• Quantum Storage of Three-Dimensional Orbital-Angular-Momentum Entanglement in a Crystal
• Quantum Storage of Frequency-Multiplexed Heralded Single Photons
• High-speed noise-free optical quantum memory
• An Integrated Photonic Platform for Rare-Earth Ions in Thin Film Lithium Niobate
• On-demand quantum storage of photonic qubits in an on-chip waveguide
• Quantum Storage of Heralded Single Photons in a Praseodymium Doped Crystal
• Laser-written integrated platform for quantum storage of heralded single photons
• A telecom-wavelength atomic quantum memory in optical fiber for heralded polarization qubits
• Quantum correlations between single telecom photons and a multimode on-demand solid state quantum memory
• Optical spin-wave storage in a solid-state hybridized electron-nuclear spin ensemble
• Ultra-narrow optical inhomogeneous linewidth in a stoichiometric rare earth crystal
• Storage and recall of weak coherent optical pulses with an efficiency of 25%
• Time Entanglement between a Photon and a Spin Wave in a Multimode Solid-state Quantum Memory
• Atomic-frequency-comb quantum memory via piecewise adiabatic passage

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