Novel structures for broadband electrooptic modulators in LiNbO3

Abstract. Real data of wet-etched ridge waveguide in Z-cut LiNbO3 is combined with two new electrode structures to improve the performance of Mach-Zehnder electrooptic modulators. Calculations show improvements up to 50 % in driving voltage in comparison with commercial and published devices in the 40GHz range. Simulation results and fabrication state is shown