144 citations · 687 across the 12 of their papers we have counts for
12 papers
Generation of entangled photons using an arrayed waveguide grating
Nobuyuki Matsuda, Hidetaka Nishi, Peter Karkus +5
We propose an on-chip source of entangled photon pairs that uses an arrayed-waveguide grating (AWG) with multiple nonlinear input waveguides as correlated photon pair sources. The…
Experimental transmission of quantum digital signatures over 90-km of installed optical fiber using a differential phase shift quantum key distribution system
Robert J. Collins, Ryan Amiri, Mikio Fujiwara +7
Quantum digital signatures apply quantum mechanics to the problem of guaranteeing message integrity and non-repudiation with information-theoretical security, which are complementa…
Ultimate low system dark count rate for superconducting nanowire single-photon detector
Hiroyuki Shibata, Kaoru Shimizu, Hiroki Takesue +1
The dark count rate (DCR) is a key parameter of single-photon detectors. By introducing a bulk optical band-pass filter mounted on a fiber-to-fiber optical bench cooled at 3 K and…
Quantum key distribution over a 72 dB channel loss using ultralow dark count superconducting single-photon detectors
Hiroyuki Shibata, Toshimori Honjo, Kaoru Shimizu
We report the first Quantum key distribution (QKD) experiment over a 72 dB channel loss using superconducting nanowire single-photon detectors (SSPD, SNSPD) with the dark count rat…
Characteristics of superconducting single photon detector in DPS-QKD system under bright illumination blinding attack
Mikio Fujiwara, Toshimori Honjo, Kaoru Shimizu +2
We derive the time-dependent photo-detection probability equation of a superconducting single photon detector (SSPD) to study the responsive property for a pulse train at high repe…
Countermeasure against tailored bright illumination attack for DPS-QKD
Toshimori Honjo, Mikio Fujiwara, Kaoru Shimizu +6
We propose a countermeasure against the so-call tailored bright illumination attacl dor Differential-Phase-Shift QKD (DPS-QKD). By Monitoring a rate of coincidence detection at a p…