Abstract
An interpenetrating polymer network (IPN) incorporating nonlinear optical (NLO) chromophores as a second-order NLO material is reported. This IPN system consists of an NLO active epoxy-based polymer network incorporating a thermally crosslinkable NLO chromophore, and an NLO active phenoxy-silicon polymer network. Characterization of the thermal and optical properties of the IPN samples are reported. The optical nonlinearity of the poled/cured IPN samples is stable after being heated at 100 °C for 168 h. The nonlinear optical coefficient, d33, of a poled/cured IPN sample is measured to be 32 pm/V at 1.064 µm. The electro-optic coefficients, r33, of this sample are determined to be 18 pm/V at 633 nm and 6.5 pm/V at 1.3 µm. Waveguide optical loss measurements have been carried out at 0.83 and 1.3 µm.
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