Abstract

Using optical waveguide configuration for electro-optic (EO) modulations offer the possibility to achieve high speed operation. Producing efficient EO modulators requires guiding region with high EO coefficients. Those latter may undergo an alteration during the fabrication process. The main techniques for measuring the EO coefficients are those based on the use of a Mach-Zehnder interferometer, directional coupling and the change of the optical polarization of the propagated light [1].

© 2000 IEEE