Abstract

Twisted fibers provide interesting properties in terms of mode coupling relevant for optical multichannel systems. In this regard, the article provides an overview of the use of space division multiplexing (SDM) technology in radio over fiber data transmission systems in future high-speed scalable 6G wireless networks. The features of using the SDM technology in the radio access network are analyzed. The application of new specialized few-mode fibers in 6G networks for useful information transmission is proposed. The results of experimental and simulation studies of custom twisted (chiral) optical fibers designed for vortex mode generation/maintenance are also presented, which can be used as a basis for hybrid modulation development, using both temporal and spatial properties of the signal.

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