T. Ryznar

Wroclaw University of Technology, Vrotslav, Lower Silesian Voivodeship, Poland

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Publications (2)0 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: The aim of this work is to test the possibility of sol-gel optical waveguides fabrication on ceramic substrates. The silica sol-gel film is chosen for an optical substrate and cladding and a glaze layer as a material for a waveguide core. The presented paper contains results of examination of the optimal chemical composition and process parameters of sol-gel material and the glaze layer. The refractive indexes and thicknesses of the films have been measured. The technology allows to make waveguide in the grooves made in LTCC substrate. The grooves have 137 mum depth and width variable from 100 mum to 1500 mum. The sol-gel/glaze combination have been used to make stripe waveguides in the grooves.
    Electronics Technology, 2008. ISSE '08. 31st International Spring Seminar on; 06/2008
  • [Show abstract] [Hide abstract]
    ABSTRACT: The sol-gel technique has been long used for the purpose of integrated optics and connected with the Low Temperature Co-fired Ceramic technology seems to be a very promising solution to the integrated optics issue. Versatile SiO<sub>2</sub> sol-gel silica and hybrid SiO<sub>2</sub>-TiO<sub>2</sub> sol-gel layers have been fabricated and deposited on substrate in the dip-coating process. In order to measure the layers an ellipsometer has been used. A wide range of achieved refractive indexes and thicknesses enabled to produce a planar waveguide on a LTCC substrate. The structure has been investigated using the prism coupler technique which confirmed its waveguide character. In order to fabricate a stripe waveguide in a LTCC channel structure both SiO<sub>2</sub> and hybrid SiO<sub>2</sub>-TiO<sub>2</sub> sol-gel glass have been used. The LTCC substrate was dip-coated with pure silica - as the waveguide substrate layer - while the channel was filled with the hybrid solution which performed higher refractive index than silica. The structure 140 mum high and 500 mum wide has been measured with the help of cut-off technique and its attenuation has turned out to be 2,46 dB/cm at the wavelength of 632,8 nm.
    Photonics and Microsystems, 2007 International Students and Young Scientists Workshop on; 08/2007