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25 November 2002 Characterization of fluorinated hyperbranched polymers and dendrimers for waveguide applications
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We report on optical transmission properties and results of optical waveguide characterization of flourinated hyperbranched polymers and dendrimers (details on chemical synthesis were reported recently [1]). The polymers and dendrimers allow the introduction of additional functionality, such as cross-linking and refractive index tuneability. The dendrimers having a similar bulk structure as the hyperbranched polymer were also shown to house lanthanide cations for optical amplifying application. The fluorinated bulk structure results in a low contribution from vibration overtones in the absorption spectra in the NIR/IR region (800 - 2200 nm). The refractive index of the fundamental fluorinated hyperbranched polymer was found to be tuneable between ca 1.45 and 1.65 by incorporating various substituents. Optical losses were measured to be below ca 0.5 dB/cm at 1550 nm.
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Claire S. A. Pitois, Anders Hult, and Mikael Lindgren "Characterization of fluorinated hyperbranched polymers and dendrimers for waveguide applications", Proc. SPIE 4805, Design and Fabrication of Planar Optical Waveguide Devices and Materials, (25 November 2002);

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