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Chip-scale mode-configurable light couplers and vortex beam generators using waveguide-integrated metasurface

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Abstract

Integrated mode-selective on-chip couplers are reported using Si-nanoantennas-patterned Si3N4 waveguide. A chip-integrated twisted-light generator coupling free-space light into optical vortex carrying 1ћ OAM is numerically demonstrated, by engineering spatial modal-overlap & controlled mode mixing.

© 2020 The Author(s)

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