Enhanced thermal stability of electro-optic polymer modulator

Abstract

We synthesized the EO polymer having a glass transition temperature (Tg) higher than 190°C. The fabricated waveguide modulator was tested for the thermal and temporal stability at 105 °C for longer than 2000 hours. The EO activity of the measured polymer modulator is attributed to the high molecular hyperpolarizability of the used chromophores, and thermal stability to the high Tg of the EO polymer.