Spectrally-Shaped Continuous-Variable QKD Operating at 500 MHz Over an Optical Pipe Lit by 11 DWDM Channels

• URL: http://arxiv.org/abs/2004.11962v2
• Date: Thu, 2 Jul 2020 18:32:39 GMT
• Title: Spectrally-Shaped Continuous-Variable QKD Operating at 500 MHz Over an Optical Pipe Lit by 11 DWDM Channels
• Authors: D. Milovan\v{c}ev, N. Voki\'c, F. Laudenbach, C. Pacher, H. H\"ubel, and B. Schrenk
• Abstract summary: We demonstrate high-rate CV-QKD supporting a secure-key rate of 22Mb/s. Co-existence with 11 adjacent carrier-grade C-band channels spaced by only 20nm is accomplished at >10Mb/s.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We demonstrate high-rate CV-QKD supporting a secure-key rate of 22Mb/s through spectral tailoring and optimal use of quantum receiver bandwidth. Co-existence with 11 adjacent carrier-grade C-band channels spaced by only 20nm is accomplished at >10Mb/s.

Related papers

• Noise characterization for co-propagation of classical and CV-QKD signals over fiber and free-space link [0.0]
  Real-time CV-QKD receiver achieves peak 2.9 Mbit/s secret-key-rates over 12.8 km of fiber. Co-propagating 15 classical channels, separated 1 nm from the quantum signal.
  arXiv  Detail & Related papers  (2024-04-25T14:51:20Z)
• Multiplexed quantum repeaters with hot multimode alkali-noble gas memories [49.702453308263266]
  We propose a non-cryogenic optical quantum memory for noble-gas nuclear spins based on the Atomic Frequency Comb protocol. We propose a ground-based quantum repeater that enables entanglement distribution over distances up to $2300 mathrmkm$ with only $8$ elementary links.
  arXiv  Detail & Related papers  (2024-02-27T18:39:15Z)
• Co-propagation of 6 Tb/s (60*100Gb/s) DWDM & QKD channels with ~17 dBm aggregated WDM power over 50 km standard single mode fiber [0.0]
  We report the co-propagation, over 50 km of SSMF, of the quantum channel (1310 nm) of a QKD system with 17 dBm total power of DWDM data channels (1550 nm range) A metric to evaluate Co-propagation Efficiency is proposed.
  arXiv  Detail & Related papers  (2023-05-23T06:53:10Z)
• Hyper-entanglement between pulse modes and frequency bins [101.18253437732933]
  Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols. We demonstrate the generation of photon pairs hyper-entangled between pulse modes and frequency bins.
  arXiv  Detail & Related papers  (2023-04-24T15:43:08Z)
• Demonstration of 17{\lambda} x 10 Gb/s C-Band Classical / DV-QKD Co-Existence Over Hollow-Core Fiber Link [0.0]
  We successfully integrate coherent one-way QKD at 1538 nm in a 7.7 km long hollow-core fiber link with 17 EDFA-boosted C-band data channels. QKD operation proves successful despite the wideband layout of classical channels.
  arXiv  Detail & Related papers  (2022-10-01T09:42:53Z)
• High fidelity two-qubit gates on fluxoniums using a tunable coupler [47.187609203210705]
  Superconducting fluxonium qubits provide a promising alternative to transmons on the path toward large-scale quantum computing. A major challenge for multi-qubit fluxonium devices is the experimental demonstration of a scalable crosstalk-free multi-qubit architecture. Here, we present a two-qubit fluxonium-based quantum processor with a tunable coupler element.
  arXiv  Detail & Related papers  (2022-03-30T13:44:52Z)
• The Quantum Multiple-Access Channel with Cribbing Encoders [78.7611537027573]
  Communication over a quantum multiple-access channel (MAC) with cribbing encoders is considered. Based on the no-cloning theorem, perfect cribbing is impossible. A partial decode-forward region is derived for a quantum MAC with non-robust cribbing.
  arXiv  Detail & Related papers  (2021-11-30T17:31:48Z)
• Ultra-Low Noise Balanced Receiver with >20 dB Quantum-to-Classical Noise Clearance at 1 GHz [0.0]
  We demonstrate a die-level balanced homodyne receiver for coherent optical access and continuous-variable quantum applications. 500Mb/s QPSK transmission was accomplished with a sensitivity of -55.8dBm.
  arXiv  Detail & Related papers  (2021-10-28T15:41:33Z)
• Towards fully-fledged quantum and classical communication over deployed fiber with up-conversion module [47.187609203210705]
  We propose and demonstrate a new method, based on up-conversion assisted receiver, for co-propagating classical light and QKD signals. Our proposal exhibits higher tolerance for noise in comparison to the standard receiver, thus enabling the distribution of secret keys in the condition of 4 dB-higher classical power.
  arXiv  Detail & Related papers  (2021-06-09T13:52:27Z)
• High Rate CV-QKD Secured Mobile WDM Fronthaul for Dense 5G Radio Networks [0.0]
  A quantum key distribution (CV-QKD) system is experimentally demonstrated in the framework of 5G mobile fronthaul links. A low excess noise in the order of 0.1% to 0.5% of shot-noise units is obtained for fiber-based transmission over a fronthaul link reach of 13.2 km. Joint signal transmission in the C-band of both, quantum signal and classical signals, is successfully demonstrated.
  arXiv  Detail & Related papers  (2021-04-09T13:44:53Z)
• Path-encoded high-dimensional quantum communication over a 2 km multicore fiber [50.591267188664666]
  We demonstrate the reliable transmission over a 2 km long multicore fiber of path-encoded high-dimensional quantum states. A stable interferometric detection is guaranteed, allowing for low error rates and the generation of 6.3 Mbit/s of secret key rate.
  arXiv  Detail & Related papers  (2021-03-10T11:02:45Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.