The SCMO1120 is a low loss, high integrity Cartesian Optical Modulator (so called because it can control the optical intensity and phase to reach any point in the complex plane) based on Gallium Arsenide designed for general-purpose applications over the frequency range DC-20 GHz. The die is fabricated using well proven and exercised high volume Gallium Arsenide processes used in the telecommunications industry that offers market leading performance optimised for optical applications.