Long-distance Quantum Key Distribution Supported by a PIC-based Interferometer

We demonstrate QKD with efficient-BB84 protocol employing a photonic integrated Mach-Zehnder interferometer in the receiver. Our solution outperforms fiber-based devices, covering a 45 dB link and achieving a 220% higher key rate at 10 dB.

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Bibliographic Details
Published in:	2024 Optical Fiber Communications Conference and Exhibition (OFC) pp. 1 - 3
Main Authors:	Guarda, Giulia, Ribezzo, Domenico, Occhipinti, Tommaso, Zavatta, Alessandro, Bacco, Davide
Format:	Conference Proceeding
Language:	English
Published:	OSA 24-03-2024
Subjects:	Mach-Zehnder interferometers Optical fiber communication Optical fibers Optical interferometry Protocols Quantum key distribution Receivers
Online Access:	Get full text
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Description
Summary:	We demonstrate QKD with efficient-BB84 protocol employing a photonic integrated Mach-Zehnder interferometer in the receiver. Our solution outperforms fiber-based devices, covering a 45 dB link and achieving a 220% higher key rate at 10 dB.