Beam-steering metasurfaces assisted coherent optical wireless multichannel communication system

Abstract The metasurface based beam-steering devices with the advantages of large steering angles, arbitrary channels and ultra-compactness have played an important role for data allocation exchange in optical wireless communication. However, current communication systems are mainly on intensity modulation direct detection (IM/DD), which shows a relative lower transmission capacity, received signal-to-noise ratio (OSNR) complexity system. In this study, bidirectional multichannel system enabled by polarization independent coherent reception is designed experimentally demonstrated, exhibits exclusive 100 Gbps signals to multiusers their own wavelengths, 2 m free space distance field view 20° × 20°. addition, proposed can support broadcasting capacity 900 Gbps. demonstrated assisted merges techniques emerging concept metasurface, reduces cost while contributing high opening new avenue performance communications.