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arXiv · 2605.05230

The light carrying orbital angular momentum through time-varying scattering media using dual orthogonal-polarization channels

Heshen Li·Jin Wei·Tianshun Zhang·Wen Chen
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Abstract

Orbital angular momentum (OAM) of light can be used as a degree of freedom for optical communication. However, the reliable transmission of OAM beams through time-varying scattering media remains challenging. In this paper, we report an approach for OAM transmission through time-varying scattering media using dual orthogonal-polarization channels. A perfect vortex beam (PVB) is generated and transmitted at one channel, and the plane wave is employed as a reference beam at another channel. With the cross-correlation obtained between the recorded speckle patterns at each single-shot measurement, the data can be retrieved without prior knowledge about time-varying scattering media. It is revealed that the multiplexed PVB can be applied to generate recognizable coherent-superposition patterns in cross-correlation images. Experimental results demonstrate that the proposed method can be applied to transmit the data through time-varying scattering media, and high robustness can be achieved. The proposed method could open up an avenue for the development of OAM transmission in harsh environments.

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Heshen Li, Jin Wei, Tianshun Zhang, Wen Chen. 2026-07-12. The light carrying orbital angular momentum through time-varying scattering media using dual orthogonal-polarization channels. https://doi.org/10.1063/5.0352347

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