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Journal Article
Effect and Compensation of Polarization-Dependent Loss in Free-Space Reference Frame Independent Quantum Key Distribution
- Authors
- Kyongchun Lim, Byung-Seok Choi, Ju Hee Baek, Minchul Kim, Joong-Seon Choe, Kap-Joong Kim, Dong Churl Kim, Junsang Oh, Chun Ju Youn
- Issue Date
- 2025-03
- Citation
- ADVANCED QUANTUM TECHNOLOGIES, v.8, no.3, pp.1-8
- ISSN
- 2511-9044
- Publisher
- WILEY
- Language
- English
- Type
- Journal Article
- Abstract
- Polarization-dependent loss (PDL) poses a critical challenge in implementing free-space quantum key distribution (QKD) systems. This study investigated the theoretical and experimental impact of PDL on polarization-encoded qubits and experimentally demonstrated a method to mitigate these effects. The proposed compensation method could effectively restore the integrity of polarization states, enhancing the robustness and security of QKD systems. Specifically, a secret key rate of 94.01% could be recovered with 5 dB PDL. This study contributes to advancing scalable and secure quantum communication technologies by addressing the critical issue of PDL in QKD systems.
- KSP Keywords
- Compensation method, Polarization dependent loss, Quantum Key Distribution, communication technologies, free space, polarization state, quantum communication, reference frame, secret key
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC)
(CC BY NC)
