72 citations · 183 across the 4 of their papers we have counts for
5 papers
Waveguide-based single-pixel up-conversion infrared spectrometer
Qiang Zhang, Carsten Langrock, M. M. Fejer +1
A periodically poled lithium niobate (PPLN) waveguide-based single-pixel up-conversion infrared spectrometer was demonstrated. Sum-frequency generation between a 1.5 micrometer ban…
Distribution of Time-Energy Entanglement over 100 km fiber using superconducting single-photon detectors
Qiang Zhang, Hiroki Takesue, Sae Woo Nam +4
In this letter, we report an experimental realization of distributing entangled photon pairs over 100 km of dispersion-shifted fiber. In the experiment, we used a periodically pole…
Generation of 10-GHz clock sequential time-bin entanglement
Qiang Zhang, Carsten Langrock, Hiroki Takesue +3
This letter reports telecom-band sequential time-bin entangled photon-pair generation at a repetition rate of 10 GHz in periodically-poled reverse-proton-exchange lithium niobate w…
Correlated photon-pair generation in reverse-proton-exchange PPLN waveguides with integrated mode demultiplexer at 10 GHz clock
Qiang Zhang, Xiuping Xie, Hiroki Takesue +4
We report 10-ps correlated photon pair generation in periodically-poled reverse-proton-exchange lithium niobate waveguides with integrated mode demultiplexer at a wavelength of 1.5…
Differential phase shift quantum key distribution experiment over 105 km fibre
H. Takesue, E. Diamanti, T. Honjo +4
Since several papers appeared in 2000, the quantum key distribution (QKD) community has been well aware that photon number splitting (PNS) attack by Eve severely limits the secure…