Polymeric PLC-type thermo-optic optical attenuator fabricated by UV imprint technique |
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Authors: | Jin Tae Kim Choon-Gi Choi |
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Institution: | Basic Research Laboratory, Electronics and Telecomminucations Research Institute, 161 Gajeong-dong, Yuseong-gu, Daejeon 305-350, Republic of Korea |
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Abstract: | A planar lightwave circuit-type polymer thermo-optic optical attenuator was fabricated via a UV imprint technique. In order to reduce the step for filling of cores and minimize the detrimental residual slab waveguide, convex ridge-type micro cores for guidance of light were defined with an accuracy of ±0.5 μm on the under-clad by a single step of imprinting. The voltage-controlled polymer optical attenuator showed 30-dB attenuation with 80-mW electrical input power at a wavelength of 1.55 μm. The rise and fall times are less than 5 ms. It displays about 0.2- and 1-dB polarization dependence at 0- and 10-dB attenuations, respectively. |
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