Estimation of the electro-optical response of lithium niobate modulators from the high-frequency transmission of traveling wave electrodes

The technique for estimation of an integrated-optical modulator electro-optical response without optical measurements was developed and tested for a lithium niobate modulator. The electro-optic response prediction was based on experimentally measured propagation characteristics of high-frequency coplanar electrodes using numerical simulation results of optical waveguides. The presented technique can be used to perform rapid tests on a wafer in production of integrated optical modulators.