Junbao Hu

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Multi-image transmission based on a multi-channel OAM-array-coded optical communication system using a designed Dammann grating and an integrated vortex grating

Nov 22, 2024 | opg.optica.org | Fu Feng |Dong Wang |Junbao Hu |Xutao Mo

Vortex beams (VBs) have the potential to support high-capacity optical communications. However, a typical VB carries only a single orbital angular momentum (OAM) in space, limiting its high-capacity communication. We propose controllably simultaneous generation of high-quality VB arrays with multiple OAMs, creating the independent multi-channel space in which the OAM mode can be flexibly manipulated at the corresponding spatial location.

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