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

Author

Xiaobao Liu, Jinglong Mi, Jindong Wang, Changjun Liao, and Songhao Liu

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)
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.

Published
2008

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