1 citations · 1 across the 4 of their papers we have counts for
4 papers
Photon Counting and Super Homodyne Detection of Weak QPSK Signals for Quantum Key Distribution
Q. XU, M. B. Costa e Silva, S. Agnolini +2
We compare the principles and experimental results of two different QPSK signal detection configurations, photon counting and super homodyning, for applications in fiber-optic Quan…
Integrating a QPSK Quantum Key Distribution Link
M. B. Costa e Silva, Q. Xu, S. Agnolini +4
We present the integration of the optical and electronic subsystems of a BB84-QKD fiber link. A highspeed FPGA MODEM generates the random QPSK sequences for a fiber-optic delayed s…
Homodyne QPSK Detection for Quantum Key Distribution
M. B. Costa e Silva, Q. Xu, S. Agnolini +2
We present a QKD system with fainted pulses using self-homodyne coherent detection in optical fibers at 1543nm. BB84 protocol key is encoded in the optical phase using a twoelectro…
Homodyne detection for quantum key distribution: an alternative to photon counting in BB84 protocol
M. B. Costa e Silva, Q. Xu, S. Agnolini +2
This paper presents the principles and experimental results of an optical fiber QKD system operating at 1550 nm, and using the BB84 protocol with QPSK signals. Our experimental set…