Demonstration of 17{\lambda} x 10 Gb/s C-Band Classical / DV-QKD Co-Existence Over Hollow-Core Fiber Link
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)
TL;DR
This paper demonstrates the successful coexistence of high-speed classical data channels and quantum key distribution over a hollow-core fiber, showing practical integration of quantum and classical communications.
Contribution
It presents the first integration of 17 classical channels with a 10 Gb/s C-band QKD over hollow-core fiber, highlighting compatibility in a real-world setup.
Findings
QKD operates successfully alongside classical channels
Coexistence achieved over 7.7 km hollow-core fiber
Integration of quantum and classical signals demonstrated
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.
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Taxonomy
TopicsOptical Network Technologies · Semiconductor Lasers and Optical Devices · Photonic and Optical Devices