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Oh, Min-Choel
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document
Optimized cladding materials for nonlinear optic polymer based devices
Abstract
We have investigated various conductive and non-conductive polymer materials suitable for use as cladding layers in nonlinear optic (NLO) polymer based opto-electronic devices. Our goal was to maximize the nonlinearity of the NLO core material, while minimizing the total poling voltage and minimizing the absorption loss. Using a cladding material that is more conductive than the NLO core material, the majority of the applied poling voltage is dropped across the core, realizing a maximum EO coefficient with minimum applied poling voltage. We found, however, that there are tradeoffs between absorption loss, conductivity, refractive index, materials processability and materials compatibility when using off-the-shelf materials. Results are presented for a 3-layer device structures using a conductive polymer material for both the top and bottom cladding layers. © 2002 SPIE