Optical Link Design for Quantum Key Distribution-Integrated Optical Access Networks
To achieve commercial scalability, fiber-based quantum key distribution (QKD) systems must be integrated into existing optical communication infrastructures, rather than deployed exclusively on dedicated dark fibers. Integrating QKD into optical access networks (OANs) would be particularly advantage...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-04-01
|
| Series: | Photonics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6732/12/5/418 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849327189646901248 |
|---|---|
| author | Sunghyun Bae Seok-Tae Koh |
| author_facet | Sunghyun Bae Seok-Tae Koh |
| author_sort | Sunghyun Bae |
| collection | DOAJ |
| description | To achieve commercial scalability, fiber-based quantum key distribution (QKD) systems must be integrated into existing optical communication infrastructures, rather than deployed exclusively on dedicated dark fibers. Integrating QKD into optical access networks (OANs) would be particularly advantageous, as these networks provide direct connectivity to end users for whom security is critical. Such integration can address the inherent security vulnerabilities in current OANs, which are primarily based on time-division multiplexing passive optical networks (TDM-PONs). However, integrating QKD into PONs poses significant challenges due to Raman noise and other detrimental effects induced by PON signals, which intensify as the launched power of PONs increases to support higher transmission speeds. In this study, we review recent advancements in both QKD and access network technologies, evaluate the technical feasibility of QKD-OAN integration, and propose cost-effective strategies to facilitate the widespread deployment of QKD in future access networks. |
| format | Article |
| id | doaj-art-d1bf2162714f41d9a45a9bb9d0e25c2c |
| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-d1bf2162714f41d9a45a9bb9d0e25c2c2025-08-20T03:47:57ZengMDPI AGPhotonics2304-67322025-04-0112541810.3390/photonics12050418Optical Link Design for Quantum Key Distribution-Integrated Optical Access NetworksSunghyun Bae0Seok-Tae Koh1Department of Electronics Information & Communication Engineering, Kangwon National University, Samcheok 25913, Republic of KoreaSchool of Electrical Engineering, Chungbuk National University, Cheongju 28644, Republic of KoreaTo achieve commercial scalability, fiber-based quantum key distribution (QKD) systems must be integrated into existing optical communication infrastructures, rather than deployed exclusively on dedicated dark fibers. Integrating QKD into optical access networks (OANs) would be particularly advantageous, as these networks provide direct connectivity to end users for whom security is critical. Such integration can address the inherent security vulnerabilities in current OANs, which are primarily based on time-division multiplexing passive optical networks (TDM-PONs). However, integrating QKD into PONs poses significant challenges due to Raman noise and other detrimental effects induced by PON signals, which intensify as the launched power of PONs increases to support higher transmission speeds. In this study, we review recent advancements in both QKD and access network technologies, evaluate the technical feasibility of QKD-OAN integration, and propose cost-effective strategies to facilitate the widespread deployment of QKD in future access networks.https://www.mdpi.com/2304-6732/12/5/418quantum key distributionoptical access networkpassive optical network |
| spellingShingle | Sunghyun Bae Seok-Tae Koh Optical Link Design for Quantum Key Distribution-Integrated Optical Access Networks Photonics quantum key distribution optical access network passive optical network |
| title | Optical Link Design for Quantum Key Distribution-Integrated Optical Access Networks |
| title_full | Optical Link Design for Quantum Key Distribution-Integrated Optical Access Networks |
| title_fullStr | Optical Link Design for Quantum Key Distribution-Integrated Optical Access Networks |
| title_full_unstemmed | Optical Link Design for Quantum Key Distribution-Integrated Optical Access Networks |
| title_short | Optical Link Design for Quantum Key Distribution-Integrated Optical Access Networks |
| title_sort | optical link design for quantum key distribution integrated optical access networks |
| topic | quantum key distribution optical access network passive optical network |
| url | https://www.mdpi.com/2304-6732/12/5/418 |
| work_keys_str_mv | AT sunghyunbae opticallinkdesignforquantumkeydistributionintegratedopticalaccessnetworks AT seoktaekoh opticallinkdesignforquantumkeydistributionintegratedopticalaccessnetworks |