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15 June 2001Polymeric optical waveguide components fabricated by simultaneous embossing and poling at elevated temperatures
Simple fabrication technique of nonlinear optical waveguide components in polymer films based on simultaneous embossing and poling at elevated temperature (SEPET) is proposed and demonstrated. The master gratings which consist of polyimide die and metal base are fabricated by a single pulse two-beam interference technique using UV laser ablation. The master grating is found to be stable enough against heat and mold treatment cycles. The master molds nonlinear optical polymers at their Tg's. At the same time, high voltage is applied to the polymers to induce second-order nonlinearity. The grating profile as well as the nonlinearity is estimated. Moreover, formation of channel waveguide with grating based on the present process is also discussed.