Securing 2D information carriers over dynamic and turbulent media in a free-space optical channel

Yonggui Cao, Yin Xiao, Wen Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

In this Letter, a new, to the best of our knowledge, scheme is proposed to realize high-fidelity secured free-space optical information transmission through dynamic and turbulent media by encoding 2D information carriers. The data are transformed into a series of 2D patterns as information carriers. A novel differential method is developed to suppress noise, and a series of random keys are also generated. A different number of absorptive filters are arbitrarily combined to be placed in the optical channel to generate ciphertext with high randomness. It is experimentally demonstrated that the plaintext can be retrieved only when correct security keys are applied. Experimental results demonstrate that the proposed method is feasible and effective. The proposed method provides an avenue for securing high-fidelity optical information transmission over dynamic and turbulent media in a free-space optical channel.

Original languageEnglish
Pages (from-to)3491-3494
Number of pages4
JournalOptics Letters
Volume48
Issue number13
DOIs
Publication statusPublished - Jul 2023

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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