Three-channel robust optical encryption via engineering coherence Stokes vector of partially coherent light

Authors: Yonglei Liu, Zhen Dong, Yimeng Zhu, Haiyun Wang, Fei Wang, Yahong Chen, Yangjian Cai

Published: 2024-04-03

DOI: 10.1186/s43074-024-00126-7

Source: Full article

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Abstract

AbstractOptical encryption strategies utilizing fully coherent light have been widely explored but often face challenges such as speckle noise and beam instabilities. In this work, we introduce a novel protocol for multi-channel optical information encoding and encryption using vectorial spatial coherence engineering of a partially coherent light beam. By characterizing the beam’s spatial coherence structure with a $$2 \times 2$$