Physical-layer key distribution using synchronous complex dynamics of DBR semiconductor lasers Article Swipe
Anbang Wang
,
Yicheng Du
,
Qingtian Li
,
Longsheng Wang
,
Zhiwei Jia
,
Yuwen Qin
,
Yuncai Wang
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1063/5.0187742
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1063/5.0187742
Common-signal-induced synchronization of semiconductor lasers with optical feedback inspired a promising physical-layer key distribution with information-theoretic security and potential in high rate. A significant challenge is the requirement to shorten the synchronization recovery time for increasing the key rate without sacrificing the operation parameter space for security. Here, open-loop synchronization of wavelength-tunable multi-section distributed Bragg reflector lasers is proposed as a solution for physical-layer key distribution. Experiments show that the synchronization is sensitive to two operation parameters, i.e., currents of grating section and phase section. Furthermore, fast wavelength-shift keying synchronization can be achieved by direct modulation on one of the two currents. The synchronization recovery time is shortened by one order of magnitude compared to close-loop synchronization. An experimental implementation is demonstrated with a final key rate of 5.98 Mbit/s over 160 km optical fiber distance. It is thus believed that fast-tunable multi-section semiconductor lasers open a new avenue for a high-rate physical-layer key distribution using laser synchronization.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1063/5.0187742
- https://pubs.aip.org/aip/app/article-pdf/doi/10.1063/5.0187742/19724380/036109_1_5.0187742.pdf
- OA Status
- gold
- Cited By
- 12
- References
- 30
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4392643735
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4392643735Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1063/5.0187742Digital Object Identifier
- Title
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Physical-layer key distribution using synchronous complex dynamics of DBR semiconductor lasersWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
-
2024-03-01Full publication date if available
- Authors
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Anbang Wang, Yicheng Du, Qingtian Li, Longsheng Wang, Zhiwei Jia, Yuwen Qin, Yuncai WangList of authors in order
- Landing page
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https://doi.org/10.1063/5.0187742Publisher landing page
- PDF URL
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https://pubs.aip.org/aip/app/article-pdf/doi/10.1063/5.0187742/19724380/036109_1_5.0187742.pdfDirect link to full text PDF
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://pubs.aip.org/aip/app/article-pdf/doi/10.1063/5.0187742/19724380/036109_1_5.0187742.pdfDirect OA link when available
- Concepts
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Laser, Semiconductor laser theory, Key (lock), Optoelectronics, Semiconductor, Layer (electronics), Materials science, Computer science, Physics, Optics, Nanotechnology, Computer securityTop concepts (fields/topics) attached by OpenAlex
- Cited by
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12Total citation count in OpenAlex
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2025: 10, 2024: 2Per-year citation counts (last 5 years)
- References (count)
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30Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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