122 citations · 309 across the 5 of their papers we have counts for
5 papers
Coexistence of Continuous Variable Quantum Key Distribution and 7 12.5 Gbit/s Classical Channels
Tobias A. Eriksson, Takuya Hirano, Motoharu Ono +6
We study coexistence of CV-QKD and 7 classical 12.5 Gbit/s on-off keying channels in WDM transmission over the C-band. We demonstrate key generation with a distilled secret key rat…
Quantum key distribution with an efficient countermeasure against correlated intensity fluctuations in optical pulses
Ken-ichiro Yoshino, Mikio Fujiwara, Kensuke Nakata +7
Quantum key distribution (QKD) allows two distant parties to share secret keys with the proven security even in the presence of an eavesdropper with unbounded computational power.…
Maintenance-free Operation of WDM Quantum Key Distribution System through a Field Fiber over 30 Days
Ken-ichiro Yoshino, Takao Ochi, Mikio Fujiwara +2
Maintenance-free wavelength-division-multiplexing quantum key distribution for 30 days was achieved through a 22-km field fiber. Using polarization-independent interferometers and…
Ultra fast quantum key distribution over a 97 km installed telecom fiber with wavelength-division multiplexing clock synchronization
Akihiro Tanaka, Mikio Fujiwara, Sae Woo Nam +10
We demonstrated ultra fast BB84 quantum key distribution (QKD) transmission at 625 MHz clock rate through a 97 km field-installed fiber using practical clock synchronization based…
High-efficiency single photon detector combined with an ultra-small APD module and a self-training discriminator for high-speed quantum cryptosystems
Seigo Takahashi, Akio Tajima, Akihisa Tomita
A single-photon avalanche detector (SPAD) for high-speed quantum-key generation has successfully been developed. It has the highest photon detection repetition frequency and the lo…