Scientific Publications

Co-existence of 9.6 Tb/s Classical Channels and a Quantum Key Distribution (QKD) Channel over a 7-core Multicore Optical Fibre

Title

Co-existence of 9.6 Tb/s Classical Channels and a Quantum Key Distribution (QKD) Channel over a 7-core Multicore Optical Fibre

Authors

Emilio Hugues-Salas, Rui Wang, George T. Kanellos, Reza Nejabati, Dimitra Simeonidou

Abstract

This paper presents a record-high co-existence DP-16QAM coherent transmission of 9.6Tb/s for classical channels with one discrete-variable quantum key distribution channel over a 7-core Multicore fibre. We demonstrate that effective secret key generation is possible even with the combined crosstalk effect of the six adjacent cores over the quantum channel. Additional measurements show the impact on the secret key rate and QBER by adding coherent optical channels in different cores.

Venue

 2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)

Place and Date

London, United Kingdom, Dec. 12-14 , 2018

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Noisy Detector? Good! Analysis of Trusted-Receiver Scenario in Continuous-Variable Quantum Key Distribution

Title

Noisy Detector? Good! Analysis of Trusted-Receiver Scenario in Continuous-Variable Quantum Key Distribution

Authors

Fabian Laudenbach and Christoph Pacher (AIT Austrian Institute of Technology)

Abstract

In CV-QKD the trusted-receiver assumption allows for a significant improvement in terms of key rate and achievable transmission distance. Moreover, as we demonstrate, sometimes detection noise can even be beneficial for the key rate.

Venue 

QIM V 2019 (https://www.osa.org/en-us/meetings/topical_meetings/quantum_information_and_measurement_(qim)_v_quant/)

Place and Date

Rome, ITA, April 4 – 6, 2019

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O-Band Differential Phase-Shift Quantum Key Distribution in 52-Channel C/L-Band Loaded Passive Optical Network

 Title

O-Band Differential Phase-Shift Quantum Key Distribution in 52-Channel C/L-Band Loaded Passive Optical Network

Authors

Bernhard Schrenk, Michael Hentschel, and Hannes Hübel (AIT Austrian Institute of Technology)

Abstract

A cost-effective QKD transmitter is evaluated in a 16km reach, 2:16-split PON and yields 5.10-7secure bits/pulse. Co-existence with 20 down-and 1 upstream channel is possible at low QBER degradation of 0.93% and 1.1%.

Venue 

OFC 2019 (https://www.ofcconference.org/en-us/home/)

Place and Date

San Diego, California, USA, March 4 – 8, 2019

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First Demonstration of Quantum-Secured, Inter-Domain 5G Service Orchestration and On-Demand NFV Chaining over Flexi-WDM Optical Networks

Title

First Demonstration of Quantum-Secured, Inter-Domain 5G Service Orchestration and On-Demand NFV Chaining over Flexi-WDM Optical Networks”.

Authors

R. Nejabati, R. Wang, A. Bravalheri, A. Muqaddas, N. Uniyal, T. Diallo, R. S. Tessinari, R. S. Guimaraes, S. Moazzeni, E. Hugues-Salas, G. T. Kanellos and D. Simeonidou

Abstract

First demonstration of quantum-secured end-to-end VNS composition through dynamic chaining of VNFs from multiple-domains. We rely on a novel quantum-switched flexi-grid WDM network and q-ROADM for inter-connectivity and on-demand selection of transport functions for quality-of-service.

Venue

OFC 2019 (https://www.ofcconference.org/en-us/home/)

Place and Date

San Diego, California, USA, March 4 – 8, 2019

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