Sub-1V Near-Infrared Thin-Film Lithium Niobate Modulator for High-Speed Visible Communication

We demonstrate state-of-the-art ultra-low voltage (0.7V), high-bandwidth modulators in thin-film lithium niobate operating at near-infrared wavelengths (850nm) and show the ability to transmit 60 GBd signals with direct electrical driving (400 mV pp ).