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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.
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.
Emerging applications based on optical beams carrying orbital angular momentum will likely require photonic integrated devices and circuits for miniaturization, improved performance and enhanced functionality. Recently we demonstrated a novel emitter of cylindrical optical vortex beams that carry photonic orbital angular momentum. The emitter consisted of a whispering gallery mode resonator embedded...
High Q-factor microring resonators (MRRs) with 22 angled multimode interference (MMI) couplers are realized based on SU-8 polymer strip waveguides, which has an SU-8 polymer core, an buffer, and an air cladding. The present MRR has a small radius (150 ) because of the high-index contrast of the SU-8 optical waveguides. The coupling ratio of the angled MMI couplers...
Elementary components required for photonic quantum information processing are realised in a silicon-on-insulator platform. On-chip quantum interference, manipulation of entangled states and photon-pair generation in a ring resonator with record high coincidental-to-accidental rates are demonstrated.
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