Dual-threshold Receiver for 1550nm Homodyne QPSK Quantum Key Distribution System

Q. Xu; M. Sabban; P. Gallion; F. J. Mendieta

doi:10.1364/COTA.2008.CWC4

Coherent Optical Technologies and Applications
(Optica Publishing Group, 2008),
paper CWC4
•https://doi.org/10.1364/COTA.2008.CWC4

Dual-threshold Receiver for 1550nm Homodyne QPSK Quantum Key Distribution System

Q. Xu, M. Sabban, P. Gallion, and F. J. Mendieta

Coherent Optical Technologies and Applications 2008

Boston, Massachusetts United States
13–16 July 2008
ISBN:

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Coherent Communications III (CWC)

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Q. Xu, M. Sabban, P. Gallion, and F. J. Mendieta, "Dual-threshold Receiver for 1550nm Homodyne QPSK Quantum Key Distribution System," in Coherent Optical Technologies and Applications, (Optica Publishing Group, 2008), paper CWC4.

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Abstract

We present a dual-threshold balanced homodyne receiver for QPSK QKD system in which the strong reference is time-multiplexed with the weak signal pulses in optical fiber, we also report its experimental BER and post-detection efficiency.

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