Demonstration of 17{\lambda} x 10 Gb/s C-Band Classical / DV-QKD Co-Existence Over Hollow-Core Fiber Link

• URL: http://arxiv.org/abs/2210.00233v1
• Date: Sat, 1 Oct 2022 09:42:53 GMT
• Title: Demonstration of 17{\lambda} x 10 Gb/s C-Band Classical / DV-QKD Co-Existence Over Hollow-Core Fiber Link
• Authors: Florian Honz (1), Florian Prawits (1), Obada Alia (2), Hessam Sakr (3), Thomas Bradley (3), Cong Zhang (3), Radan Slav\'ik (3), Francesco Poletti (3), George Kanellos (2), Reza Nejabati (2), Philip Walther (4), Dimitra Simeonidou (2), Hannes H\"ubel (1), Bernhard Schrenk (1) ((1) AIT Austrian Institute of Technology, (2) University of Bristol, (3) Optoelectronics Research Centre, University of Southampton, (4) University of Vienna, Faculty of Physics)
• Abstract summary: 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.
• Score: 0.0
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: 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 from 1540.56 to 1558.17 nm, aggregating a power of 11 dBm. QKD operation proves successful despite the wideband layout of classical channels.

Related papers

• Metropolitan quantum key distribution using a GaN-based room-temperature telecommunication single-photon source [54.32714639668751]
  Single-photon sources (SPS) hold the potential to enhance the performance of quantum key distribution (QKD) We have successfully demonstrated QKD using a room-temperature SPS at telecommunication wavelength.
  arXiv  Detail & Related papers  (2024-09-27T07:35:51Z)
• 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)
• First Demonstration of 25λ x 10 Gb/s C+L Band Classical / DV-QKD Co-Existence Over Single Bidirectional Fiber Link [2.1326417062961687]
  Co-propagation of classical and quantum signals can benefit from the development of novel hollow-core fibers. We demonstrate a secure key rate of 330 bit/s for a quantum channel at 1538 nm in the presence of 25 x 10 Gb/s classical channels. We believe this to be an important step towards the deployment and integration of hollow-core fibers together with DV-QKD for the inherently secure telecom network of the future.
  arXiv  Detail & Related papers  (2024-03-20T11:00:03Z)
• Time-Interleaving Enabled Co-propagation of QKD and Classical Channels over 100-km Fiber with 10-dBm Classical Launch Power [2.6857548685427357]
  We develop a time-interleaving technique to enable the co-propagation of quantum and classical channels in the C-band without sacrificing either performance. We demonstrate the co-propagation of a polarization-encoding decoy-state BB84 QKD channel with a 100 Gb/s QPSK channel with 10-dBm launch power in the C-band over 100 km of fiber.
  arXiv  Detail & Related papers  (2023-04-26T21:10:12Z)
• High quality entanglement distribution through telecommunication fiber using near-infrared non-degenerate photon pairs [73.4643018649031]
  In urban environments, the quantum channel in the form of telecommunication optical fiber (confirming to ITU G.652D standards) are available. We investigate the possibility that for campus-type communications, entangled photons prepared in the Near-Infrared Range (NIR) can be transmitted successfully.
  arXiv  Detail & Related papers  (2022-09-09T03:23:11Z)
• Single-emitter quantum key distribution over 175 km of fiber with optimised finite key rates [45.82374977939355]
  We perform fibre-based quantum key distribution with a quantum dot frequency-converted to telecom wavelength. We demonstrate positive key rates up to 175 km in the regime. This result represents major progress towards the feasibility of long-distance single-emitter QKD networks.
  arXiv  Detail & Related papers  (2022-09-07T18:03:36Z)
• 1.6 Tbps Classical Channel Coexistence With DV-QKD Over Hollow Core Nested Antiresonant Nodeless Fibre (HC-NANF) [0.0]
  We demonstrate for the first time the coexistence of a quantum-channel and 8x200 Gpbs 16-QAM optical channels with launching powers as high as -9dBm per channel in a 2 km HC-NANF.
  arXiv  Detail & Related papers  (2021-06-28T10:32:34Z)
• 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)
• 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)
• Stable Polarization Entanglement based Quantum Key Distribution over Metropolitan Fibre Network [55.41644538483948]
  We demonstrate a quantum key distribution implementation over deployed dark telecom fibers with polarisation-entangled photons generated at the O-band. One of the photons in the pairs are propagated through 10km of deployed fiber while the others are detected locally. This ensures continuous and stable QKD operation with an average QBER of 6.4% and a final key rate of 109 bits/s.
  arXiv  Detail & Related papers  (2020-07-04T02:36:57Z)
• Spectrally-Shaped Continuous-Variable QKD Operating at 500 MHz Over an Optical Pipe Lit by 11 DWDM Channels [0.0]
  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.
  arXiv  Detail & Related papers  (2020-04-24T19:43:44Z)

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.