High Efficiency Single-Sideband Modulator using Coupled Bragg Grating Resonators on Thin-Film Lithium Niobate

We demonstrate an efficient single-sideband thin-film lithium niobate modulator with periodically cascaded Bragg gratings. The device achieves the highest modulation efficiency that has been reported (0.19 V/cm) with a compact phase-shifter length (542 µm).