Ultra-wide Bandwidth Thin-film LiNbO 3 Modulator with Record-Low Half-wave-voltage Length Product

Novel electro-optic modulators are fabricated based on LiNbO 3 -silica hybrid waveguide and capacitively-loaded electrodes. Record-low half-wave-voltage length product of 1.7 V•cm and modulation bandwidth > 67 GHz are demonstrated.