Chuang Wei-Ching, Huang Yu-Tai, Lin Hui-Chi, Lee An-Chen
Department of Electro-Optical Engineering, National Formosa University, Huwei, Yunlin, Taiwan.
Opt Express. 2011 May 23;19(11):10776-88. doi: 10.1364/OE.19.010776.
In this work, a first report on fabricating an asymmetric Bragg coupler-based filter on polymeric waveguides without input-waveguide grating was revealed. The fabrication process we developed was using holographic interference techniques, capillary effect, soft lithography, and micro molding process. The transmission dip of about -9.2 dB and the 3 dB transmission bandwidth of about 0.125 nm were obtained from a filter.
