Abstract

Electrode poling of a crosslinkable electrooptic polymer was investigated upon application of cw and pulsed electric fields. The measurements were carried out on Red Acid Magly polymer, which is a crosslinkable extension of the currently used Disperse-Red 1 MMA side chain polymer¹. Thin solid films were produced by spin coating on ITO coated glass substrates and then cladded with two adjacent gold electrodes. The ITO and gold layers were used both as poling and modulating electrodes throughout the measurements. Poling was obtained contemporarly in both zones by applying a cw electric field (130 V/µm) between ITO and one first electrode and a square wave electric field $\left({\text{E}}_{\text{p}}^{\mathrm{miax}}=100 \text{V}/\mu \text{m},{\text{E}}_{\text{p}}^{\min }=0 \text{V}/\mu \text{m},\text{v}=1\text{Hz}\right)$ between ITO and the second electrode. Temperature was high enough to initiate the crosslinking process (Tp=130°C) and the time sufficiently long to saturate it².

© 1996 IEEE