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Electrical switching of the orbital angular momentum (OAM) mode order emitted from an SOI microring resonator is reported. The integration of the microring with waveguide couplers is used to demonstrate modulation of the relative phase between pairs of OAM modes with opposite signs.
Fast tuning of the Optical Angular Momentum (OAM) order of a vortex beam is demonstrated with 20µs switching times using a compact silicon photonic device.
On-chip electrical modulation of relative phase between pairs of optical vortices with opposite signs has been demonstrated, enabling useful functions in lab-on-chip, communications and sensing applications.
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