HIGH-PERFORMANCE ELECTROOPTIC POLYMER WAVE-GUIDE DEVICE

A high performance electro-optic polymer modulator is fabricated by ut ilizing a thermally curable cladding polymer. Half-wave modulation vol tage as low as 3.7 and 4.8 V under 500 Hz operation is obtained with a 1.5 cm long electrode at wavelengths of 1.3 and 1.55 mu m, respective ly. The modulator also shows stable de bias voltage to be traceable an d low poling-induced optical loss. This work implies that proper selec tion of a cladding material is as important as the electro-optic mater ials in the electro-optic waveguide devices. (C) 1997 American Institu te of Physics. [S0003-6951(97)02752-6].