Compact Photonic Integrated Spatial Mode Controller Based on Thin Film Lithium Niobate

We demonstrate the compact photonic-integrated spatial mode controller based on arrayed-waveguide-grating (AWG) using the thin-film z-cut lithium niobate platform. The fabricated integrated chip exhibited 100 output channels with intervals of 50 pm. The controlling time is measured less than 0.5 μs for the amplitude control.