Intrinsically stable phase-modulated polarization encoding system for quantum key distribution

Authors :: Xiaobao Liu
Jinglong Mi
Jindong Wang
Changjun Liao
Songhao Liu
Source :: Physics Letters A. 373:54-57
Publication Year :: 2008
Publisher :: Elsevier BV, 2008.
Abstract: We demonstrate experimentally an intrinsically stable polarization coding and decoding system composed of optical-fiber Sagnac interferometers with integrated phase modulators for quantum key distribution. An interference visibility of 98.35% can be kept longtime during the experiment without any efforts of active compensation for coding all four desired polarization states.

Subjects :: Physics
business.industry
General Physics and Astronomy
Quantum key distribution
Polarization (waves)
Topology
Optics
Quantum cryptography
Astronomical interferometer
Stable phase
business
Phase modulation
Decoding methods
Coding (social sciences)

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