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Interference of phase-shifted chirped laser pulses for secure free-space optical communications

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Abstract

A new method concerning secure free-space communications by means of chirped laser pulse interference is proposed. Physical-layer security of the link is ensured by encoding the data in a relative phase difference between two spatially separated beams. The possible architecture of the dual-node link is discussed based on acousto-optic elements for signal modulation and detection.

© 2018 Optical Society of America

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