Sensore di campo elettrico completamente dielettrico in ottica integrata.

We report an electric field sensor based on a particular cofiguration of Mach-Zehnder interferometer (MZI). The device, fabricated on a Lithium Niobate substrate, is totally dielectric, without any presence of metallic electrodes. A modulation depth of 92% and an half wave voltage of 107.8 V were measured using a triangular voltage signal.