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<p>Characterizing multiple vortex beams simultaneously remains challenging due to alignment sensitivity and the complexity of conventional optical setups. In this work, we demonstrate a robust and reliable method based on a single sinusoidally designed phase mask, implemented on a phase-only spatial light modulator (SLM), for the simultaneous characterization of non-collinear, spatially multiplexed vortex beams carrying distinct topological charges. The experimental results show good agreement with numerical simulations. Using this technique, we successfully characterized four spatially distinct vortex modes in a single acquisition.</p>

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Simultaneous characterization of non-collinear spatially multiplexed vortex beams

  • 期刊论文

  • 发表日期：

    2026年2月26日

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  • Ali Mardan Dezfouli,
  • Mario Rakić,
  • Hrvoje Skenderović

摘要

Characterizing multiple vortex beams simultaneously remains challenging due to alignment sensitivity and the complexity of conventional optical setups. In this work, we demonstrate a robust and reliable method based on a single sinusoidally designed phase mask, implemented on a phase-only spatial light modulator (SLM), for the simultaneous characterization of non-collinear, spatially multiplexed vortex beams carrying distinct topological charges. The experimental results show good agreement with numerical simulations. Using this technique, we successfully characterized four spatially distinct vortex modes in a single acquisition.