4 May 2005 Block-copolymerized polyimides for optical waveguides
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Abstract
We have developed polyimides for optical waveguide synthesized by block-copolymerization method. We demonstrated the optical waveguide with rather low refractive indices. Lower refractive indices make larger waveguide size and easier coupling to optical fibers. We applied polyimides with lower refractive indices with a fluorinated polyimide for the clad and polyimide of dedrimer structures for core. The refractive indices are precisely controlled as 0.01 by thermal conditions. This core polyimide has patterned by i-line process and formed optical waveguide.
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Taro Itatani, Taro Itatani, Sucheta Gorwadkar, Sucheta Gorwadkar, Akinori Shiotani, Akinori Shiotani, Masahiro Igusa, Masahiro Igusa, Kenji Yonei, Kenji Yonei, Joji Maeda, Joji Maeda, Hiroshi Itatani, Hiroshi Itatani, } "Block-copolymerized polyimides for optical waveguides", Proc. SPIE 5753, Advances in Resist Technology and Processing XXII, (4 May 2005); doi: 10.1117/12.600190; https://doi.org/10.1117/12.600190
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