QKD using polarization encoding with active measurement basis selection

We report a proof-of-principle quantum key distribution experiment using a one-way optical scheme with polarization encoding implementing the BB84 protocol. LiNbO3 phase modulators are used for generating polarization states for Alice and active basis selection for Bob. This allows the former to use...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2017-11, Vol.917 (6), p.62058
Main Authors: Duplinskiy, A, Ustimchik, V, Kanapin, A, Kurochkin, Y
Format: Article
Language:English
Subjects:
Algorithms
Lithium niobates
Modulators
Optical fibers
Physics
Polarization
Quantum cryptography
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report a proof-of-principle quantum key distribution experiment using a one-way optical scheme with polarization encoding implementing the BB84 protocol. LiNbO3 phase modulators are used for generating polarization states for Alice and active basis selection for Bob. This allows the former to use a single laser source, while the latter needs only two single-photon detectors. The presented optical scheme is simple and consists of standard fiber components. Calibration algorithm for three polarization controllers used in the scheme has been developed. The experiment was carried with 10 MHz repetition frequency laser pulses over a distance of 50 km of standard telecom optical fiber.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/917/6/062058