280 citations · 948 across the 10 of their papers we have counts for
11 papers
Quantum Storage of Frequency-Multiplexed Heralded Single Photons
Alessandro Seri, Dario Lago-Rivera, Andreas Lenhard +4
We report on the quantum storage of a heralded frequency-multiplexed single photon in an integrated laser-written rare-earth doped waveguide. The single photon contains 15 discrete…
Laser-written integrated platform for quantum storage of heralded single photons
Alessandro Seri, Giacomo Corrielli, Darío Lago-Rivera +4
Efficient and long-lived interfaces between light and matter are crucial for the development of quantum information technologies. Integrated photonics solutions for quantum storage…
Quantum frequency conversion of memory-compatible single photons from 606 nm to the telecom C-band
Nicolas Maring, Dario Lago-Rivera, Andreas Lenhard +2
We report on quantum frequency conversion of memory-compatible narrow-bandwidth photons at 606 nm to the telecom C-band at 1552nm. The 200ns long photons, compatible with P…
High-fidelity entanglement between a trapped ion and a telecom photon via quantum frequency conversion
Matthias Bock, Pascal Eich, Stephan Kucera +4
Entanglement between a stationary quantum system and a flying qubit is an essential ingredient of a quantum-repeater network. It has been demonstrated for trapped ions, trapped ato…
Frequency-Bin Entanglement of Ultra-Narrow Band Non-Degenerate Photon Pairs
Daniel Rieländer, Andreas Lenhard, Osvaldo Jimenez +5
We demonstrate frequency-bin entanglement between ultra-narrowband photons generated by cavity enhanced spontaneous parametric down conversion. Our source generates photon pairs in…
Coherence and Entanglement Preservation of Frequency-Converted Heralded Single Photons
Andreas Lenhard, José Brito, Matthias Bock +2
We report on quantum frequency conversion of near-infrared photons from a wavelength of 854nm to the telecommunication O-band at 1310nm with 8% overall conversion efficiency. Entan…
Quantum correlations between single telecom photons and a multimode on-demand solid state quantum memory
Alessandro Seri, Andreas Lenhard, Daniel Rieländer +4
Quantum correlations between long lived quantum memories and telecom photons that can propagate with low loss in optical fibers are an essential resource for the realization of lar…
Cavity enhanced telecom heralded single photons for spin-wave solid state quantum memories
Daniel Rieländer, Andreas Lenhard, Margherita Mazzera +1
We report on a source of heralded narrowband (3MHz) single photons compatible with solid-state spin-wave quantum memories based on praseodymium doped crystals. Widely non-degenerat…
Quantum and classical telecommunication channel multiplexing
Andreas Lenhard, José Brito, Stephan Kucera +3
We demonstrate the multiplexing of a classical coherent and a quantum state of light in a single telecommunciation fiber. For this purpose we make use of spontaneous parametric dow…
Telecom-heralded single photon absorption by a single atom
Andreas Lenhard, Matthias Bock, Stephan Kucera +5
We present, characterize, and apply a photonic quantum interface between the near infrared and telecom spectral regions. A singly resonant optical parametric oscillator (OPO) opera…
Visible-to-telecom quantum frequency conversion of light from a single quantum emitter
Sebastian Zaske, Andreas Lenhard, Christian A. Kessler +8
Quantum frequency conversion (QFC), a nonlinear optical process in which the frequency of a quantum light field is altered while conserving its non-classical correlations, was firs…