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International Conference on Transparent Optical Networks

Embedding Quantum Key Distribution into Optical Telecom Communication Systems

Rui Lin, Aleksejs Udaļcovs, Oskars Ozoliņš, Ming Tang, Songnian Fu, Sergei Popov, Thiago Ferreira da Silva, GUILHERME BARRETO XAVIER, Jiajia Chen

Published Jul 1, 2019• 2 citations
Publisher

Abstract

Quantum key distribution (QKD) together with one-time pad cryptography provides unconditional security for the sensitive information. However, the lack of telecom compatibility hinders massive deployment of QKD. In this talk we will discuss the approaches of embedding QKD in optical communication systems and the recent progress.
DOI
10.1109/icton.2019.8840512

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The distribution of secret keys with information-theoretic security, made possible by the laws of quantum mechanics, is undoubtedly one of the main achievements of quantum information processing and communications. In recent years, quantum key distribution (QKD) has been implemented in real-world conditions and commercial systems are now available. Despite this progress, however, QKD remains a relatively difficult to operate and costly technology, hindering its widespread use for high-security applications. The photonic integration of QKD devices can play a crucial role in this direction by reducing their size and cost by several orders of magnitude.
Quantum Key Distribution (QKD) protocols have emerged as a promising solution for secure communication, offering provable security guarantees based on the principles of quantum mechanics. an overview of recent advancements and challenges in the field of QKD protocols. We discuss key protocols such as BB84, E91, and continuous-variable QKD, highlighting their theoretical foundations and practical implementations. Furthermore, we explore recent research developments in QKD, including measurement-device-independent QKD, twin-field QKD, and satellite-based QKD. These advancements have expanded the capabilities and applicability of QKD protocols, paving the way for secure communication channels resistant to eavesdropping attacks. However, challenges such as scalability, compatibility with existing infrastructure, and vulnerability to certain attacks remain significant barriers to the widespread deployment of QKD. By addressing these challenges and continuing to innovate in the field of quantum cryptography, we can unlock the full potential of QKD protocols for ensuring the confidentiality and integrity of sensitive information exchange in the digital age.