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22 January 1997 Preparation of chi(2)-inverted waveguides with poled polymers for efficient second-harmonic generation
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Modal dispersion phase-matched second harmonic generation is demonstrated in polymer-based waveguides with a nonlinear optical core consisting of two side-chain polymers with different glass-transition temperatures. For an optimized overlap integral, a step like nonlinearity profile (chi(2)-inverted structure) is required across the core thickness. The chi(2)-inverted structure is achieved by two consecutive thermally assisted poling steps above and between the respective glass-transition temperatures, with an opposite poling field in the second poling step. The achieved chi(2)-inverted structure is monitored by in- situ electro-optic measurements and proved by electro-optic and second harmonic generation thermal analysis. Conversion efficiencies up to 7%/Wcm2 were achieved in first waveguide second-harmonic generation experiments.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Yilmaz, Werner Wirges, Walter Brinker, Simona Bauer-Gogonea, Stefan Bauer, Matthias L. Jaeger, George I. Stegeman, M. Ahlheim, M. Staehelin, B. Zysset, F. Lehr, Mart B. J. Diemeer, and M. C. Flipse "Preparation of chi(2)-inverted waveguides with poled polymers for efficient second-harmonic generation", Proc. SPIE 3006, Optoelectronic Integrated Circuits, (22 January 1997);

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