Development and Application of Composite Overhead Ground Wire with Optical Fibers

Tsujimoto, K.; Sakurada, H.; Kato, Tomohiro; Okazato, A.

doi:10.1109/tpas.1983.318089

“…Aerial fiber is a preferred choice in suburban and rural aeras, where it is difficult to lay buried fiber or ducted fiber cables. In particular, aerial fiber cables are widely deployed in the power supply network, known as the Optical Fiber Composite Overhead Ground Wire (OPGW) [13,14]. However, unlike the buried and ducted fiber, aerial fiber is more susceptible to external conditions such as natural climate and human factors [15,16], making it challenging for long-distance quantum key distribution in this fast-changing scenario.…”

Section: Introductionmentioning

confidence: 99%

Field test of quantum key distribution over aerial fiber based on simple and stable modulation

tang¹,

Xie²,

Zhang³

et al. 2023

Preprint

0

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We have developed a simple time-bin phase encoding quantum key distribution system, using the optical injection locking technique. This setup incorporates both the merits of simplicity and stability in encoding, and the immunity to channel disturbance. We have demonstrated, to our knowledge, the longest field implementation of quantum key distribution over deployed aerial fiber with a distance of 87 km. During the 70-day field test, we achieved approximately a 1.0 kbps secure key rate with stable performance. Our work takes an important step toward widespread implementation of QKD systems in diverse and complex real-life scenarios.

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“…Aerial fiber is a preferred choice in suburban and rural aeras, where it is difficult to lay buried fiber or ducted fiber cables. In particular, aerial fiber cables are widely deployed in the power supply network, known as the Optical Fiber Composite Overhead Ground Wire (OPGW) [13,14]. However, unlike the buried and ducted fiber, aerial fiber is more susceptible to external conditions such as natural climate and human factors [15,16], making it challenging for long-distance quantum key distribution in this fast-changing scenario.…”

Section: Introductionmentioning

confidence: 99%

Field test of quantum key distribution over aerial fiber based on simple and stable modulation

tang¹,

Xie²,

Zhang³

et al. 2023

Preprint

1

0

View full text Add to dashboard Cite

We have developed a simple time-bin phase encoding quantum key distribution system, using the optical injection locking technique. This setup incorporates both the merits of simplicity and stability in encoding, and the immunity to channel disturbance. We have demonstrated, to our knowledge, the longest field implementation of quantum key distribution over deployed aerial fiber with a distance of 87 km. During the 70-day field test, we achieved approximately a 1.0 kbps secure key rate with stable performance. Our work takes an important step toward widespread implementation of QKD systems in diverse and complex real-life scenarios.

show abstract

A Digital Feeder Longitudinal Biased Differential Relay

Alegria

¹

,

Nunes

²

1985

IFAC Proceedings Volumes

1

0

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Development and Application of Composite Overhead Ground Wire with Optical Fibers

Cited by 5 publications

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Field test of quantum key distribution over aerial fiber based on simple and stable modulation

Field test of quantum key distribution over aerial fiber based on simple and stable modulation

Field test of quantum key distribution over aerial fiber based on simple and stable modulation

A Digital Feeder Longitudinal Biased Differential Relay

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