1.6 Tbps Classical Channel Coexistence With DV-QKD Over Hollow Core Nested Antiresonant Nodeless Fibre (HC-NANF)

• URL: http://arxiv.org/abs/2106.14560v2
• Date: Mon, 28 Mar 2022 10:12:14 GMT
• Title: 1.6 Tbps Classical Channel Coexistence With DV-QKD Over Hollow Core Nested Antiresonant Nodeless Fibre (HC-NANF)
• Authors: O. Alia, R. S. Tessinari, T. D. Bradley, H. Sakr, K. Harrington, J. Hayes, Y. Chen, P. Petropoulos, D. Richardson, F. Poletti, G. T. Kanellos, R. Nejabati, D. Simeonidou
• Abstract summary: 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.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: 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. Comparative analysis with single-mode fibre reveals that the quantum channel could not be sustained at such power levels.

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)
• Designing Noise-Robust Quantum Networks Coexisting in the Classical Fiber Infrastructure [0.0]
  coexistence of multi-channel O-band quantum and C-band classical communications. We characterize multiple narrowband entangled photon pair channels across 1282 nm-1318 nm co-propagating over 48 km installed standard fiber. We analyze the Raman noise spectrum, optimal wavelength engineering, multi-photon pair emission in entangled photon-classical coexistence, and evaluate the implications for future quantum applications.
  arXiv  Detail & Related papers  (2023-04-18T15:49:38Z)
• High-rate sub-GHz linewidth bichromatic entanglement source for quantum networking [59.191830955730346]
  In this work, we study an entanglement source based on four-wave mixing in a diamond configuration in a warm rubidium vapor. We are able to achieve in-fiber entangled pair generation rates greater than $107, /s$, orders of magnitude higher than previously reported atomic sources.
  arXiv  Detail & Related papers  (2023-04-11T21:19:30Z)
• 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 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)
• DV-QKD Coexistence With 1.6 Tbps Classical Channels Over Hollow Core Fibre [2.300823901175652]
  coexistence transmission of 1.6 Tbps is achieved for the classical channels simultaneously with a quantum channel over a 2 km-long Hollow Core Nested Antiresonant Nodeless Fibre (HC-NANF) In the best-case scenario, the spacing between quantum and classical is 200 GHz (1.6 nm) with 50 GHz (0.4 nm) spacing between each classical channel. In the worst-case scenario using the same powers, and with 1 THz (8 nm) spacing between quantum and classical channels, the SKR dropped 10% using the HC-NANF, whereas in the SMF the SKR plummeted to zero.
  arXiv  Detail & Related papers  (2022-03-28T10:08:12Z)
• Dynamic DV-QKD Networking in Fully-Meshed Software-Defined Optical Networks [0.3355436702348693]
  We demonstrate a four-node trusted-node-free metro network configuration with dynamic discrete-variable quantum key distribution DV-QKD networking capabilities. Coexistence of a quantum channel and six classical channels through a field-deployed fibre test network is examined.
  arXiv  Detail & Related papers  (2021-08-25T09:46:32Z)
• Characterization and stability measurement of deployed multicore fibers for quantum applications [50.591267188664666]
  We characterize for the first time, in terms of phase stability, multiple strands of a 4-core multicore fiber installed underground in the city of L'Aquila. We investigate the possibility of using such an infrastructure to implement quantum-enhanced schemes, such as high-dimensional quantum key distribution, quantum-based environmental sensors.
  arXiv  Detail & Related papers  (2021-03-11T18:24:59Z)
• Coherent control and distinguishability of quantum channels via PBS-diagrams [59.94347858883343]
  We introduce a graphical language for coherent control of general quantum channels inspired by practical quantum optical setups involving polarising beam splitters (PBS) We characterise the observational equivalence of purified channels in various coherent-control contexts, paving the way towards a faithful representation of quantum channels under coherent control.
  arXiv  Detail & Related papers  (2021-03-02T22:56:25Z)
• 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)
• Tunable quantum photonics platform based on fiber-cavity enhanced single photon emission from two-dimensional hBN [52.915502553459724]
  In this work we present a hybrid system consisting of defect centers in few-layer hBN grown by chemical vapor deposition and a fiber-based Fabry-Perot cavity. We achieve very large cavity-assisted signal enhancement up to 50-fold and equally strong linewidth narrowing owing to cavity funneling. Our work marks an important milestone for the deployment of 2D materials coupled to fiber-based cavities in practical quantum technologies.
  arXiv  Detail & Related papers  (2020-06-23T14:20:46Z)

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.