Maintenance-free operation of WDM quantum key distribution system through a field fiber over 30 days

Yoshino, K.; Ochi, Takao; Fujiwara, Mikio; Sasaki, Masahide; Tajima, Akio

doi:10.1364/oe.21.031395

Cited by 72 publications

(58 citation statements)

References 15 publications

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“…Efficiencies are coherent for a 22 km network length with 13 dB loss, overhead ratio 95 %, QBER of 1.8% by guaranteeing a secure key rate of 100 kbps [3]. The function g(τ ) is modeled by a simple third order polynomial, whereas h(τ ) of second order.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…The integer r denotes the incoming requests for using the QBB nodes whose dynamics is controlled by the KML, as depicted in Fig. 2 [3].…”

Section: The Qkd Functionalitymentioning

confidence: 99%

“…Currently this protocol is being used in banking activities and plans to be extended in modern cities are under study [2]. Despite of the fact that these future implementations will face evident challenges as to the related aspects of software-hardware interfaces, various world cities have started to deploy and test well-robust QKD systems whose functionalities are very prospective [3]. However, these advantageous technologies must be finally evaluated by the end user perception.…”

Section: Introductionmentioning

confidence: 99%

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QoS evaluation for end user mobility for accessing classical and QKD networks

Nieto-Chaupis

2014

2014 IEEE Latin-America Conference on Communications (LATINCOM)

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We evaluate the QoS of a high user mobility through the calculation of the probability of success call completion (PSCC) when performs handover, but its call request needs to use both classical and quantum key distribution (QKD) networks resources. To this end, the formalism for PSCC estimation takes into account up to three elements: the probability to (i) leave the actual base station (BS), (ii) find the next BS inside the hysteresis time, and (iii) be blocked because others users try to occupy classic and QKD networks. Indeed, when the end user call needs to establish connection to a QKD hardware, the key management layer (KML) assumes the responsibility to provide continuous service by monitoring nodes between classical application and QKD layers. Thus, the QKD scheme is supported by the BennettBrassard protocol (BB84) which guarantees high QKD hardware efficiencies. In addition, the blocking probabilities are modeled with the Mellin transform. The results have demonstrated that the incorporation of a QKD network working together to a classical one, might to degrade the PSCC in up to 20% of nominal values, and that can be interpreted as the interaction between classic and QKD networks giving rise to an extra blocking effect.Index Terms-QKD, handover, BB84 protocol.

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Section: Numerical Resultsmentioning

confidence: 99%

“…The integer r denotes the incoming requests for using the QBB nodes whose dynamics is controlled by the KML, as depicted in Fig. 2 [3].…”

Section: The Qkd Functionalitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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QoS evaluation for end user mobility for accessing classical and QKD networks

Nieto-Chaupis

2014

2014 IEEE Latin-America Conference on Communications (LATINCOM)

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“…Fortunately, quantum key distribution (QKD) provides a highly secure approach to sharing random encryption keys by transmitting single photons [2]. Although QKD has advanced from simple proof-of-principle experiments toward robust long-term demonstrations [3][4][5][6], it has still not obtained wide-scale adoption.…”

Section: Introductionmentioning

confidence: 99%

Integrated Silicon Photonics for High-Speed Quantum Key Distribution

Kennard

Sibson

Stanisic

et al. 2017

Conference on Lasers and Electro-Optics

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Integrated photonics offers great potential for quantum communication devices in terms of complexity, robustness, and scalability. Silicon photonics in particular is a leading platform for quantum photonic technologies, with further benefits of miniaturization, cost-effective device manufacture, and compatibility with CMOS microelectronics. However, effective techniques for high-speed modulation of quantum states in standard silicon photonic platforms have been limited. Here we overcome this limitation and demonstrate high-speed low-error quantum key distribution modulation with silicon photonic devices combining slow thermo-optic DC biases and fast (10 GHz bandwidth) carrier-depletion modulation. The ability to scale up these integrated circuits and incorporate microelectronics opens the way to new and advanced integrated quantum communication technologies and larger adoption of quantumsecured communications.

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“…In the commercial arena, in particular, great progresses have been recently achieved in the area of high-speed QKD and long distance quantum network systems [14][15][16][17][18][19][20][21][22][23][24][25]. Many studies on QKD security have been also conducted uninterruptedly since 1984, because providing security is essential for the commercialization of such systems.…”

Section: Introductionmentioning

confidence: 99%