ENHANCED ELECTROOPTIC COEFFICIENT OF NONLINEAR-OPTICAL POLYMER USING LIQUID CONTACT POLING

The value of electro-optic coefficient r(33) Of an electro-optic (EO) polymer film depends on the polarization density achieved after the el ectric poling process. In this letter, we report a high temperature li quid contact poling method which provides a poling field as high as 25 0 V/mu m in LD-3 EO polymer film with less surface damages. The r(33) value was measured to be 18 pm/V at 633 nm which is 40% higher than th e previous reported datum. Such a high poling field and therefore larg er r(33) value are not achievable through either contact poling or cor ona poling. (C) 1997 American Institute of Physics.