Summary form only given. In recent years, the amorphous chalcogenide glasses (ChG) have attracted much interest for applications in linear and nonlinear integrated optical systems. High optical transparency in the 1-10 /spl mu/m wavelength region, large nonlinear refractive index, and low phonon energy of these materials make them very useful for infrared telecommunication network, nonlinear switching devices, and optical amplifiers. ChG also exhibit high photosensitivity when exposed to a suitable wavelength corresponding to band gap energy. As/sub 2/S/sub 3/ (E/sub g/=2.35 eV, /spl alpha//spl sim/10/sup 3/ cm/sup -1/) used as the cladding layer, has been shown to be more photosensitive than As/sub 24/S/sub 38/Se/sub 38/ (E/sub g/=2.10 eV, /spl alpha//spl sim/10/sup 4/ cm/sup -1/) when exposed at 514.5 nm, but the latter has a much higher nonlinear refractive index (n/sub 2//spl sim/1.75/spl middot/10/sup -14/ cm/sup 2//W). The multilayer waveguide geometry is used because of lower losses and higher coupling efficiency compared to a single layer waveguide. A photoinduced refractive index change in these materials is used to realize a variety of photoimprinted integrated optical components in planar lightwave circuits (PLC). In the present work, the fabrication of Bragg reflectors is demonstrated which can be used as wavelength selective elements for WDM networks, and nonlinear Bragg gratings (Bragg solitons) for nonlinear all optical switching devices.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Fabrication of Bragg gratings in multilayer planar waveguide of chalcogenide glasses


    Contributors:


    Publication date :

    1999-01-01


    Size :

    157070 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Efficient Bragg Gratings in Single Mode Planar Waveguide of Chalcogenide Glasses

    Saliminia, A. / Villeneuve, A. / Galstyan, T.V. et al. | IEEE | 1998


    First- and Second-Order Bragg Gratings in Single-Mode Planar Waveguides of Chalcogenide Glasses

    Saliminia, A. / Villeneuve, A. / Galstyan, T. V. et al. | British Library Online Contents | 1999


    Waveguide Bragg gratings written inside bulk glasses by femtosecond laser

    Kamata, M. / Toratani, E. / Obara, M. | IEEE | 2005


    Silicon-on-insulator waveguide Bragg gratings

    Tidmarsh, J. / Drake, J. / Optical Society of America | British Library Conference Proceedings | 1998


    Development of chalcogenide glasses for use in near-infrared planar waveguide applications

    Richardson, K.A. / Cardinal, T. / Shim, H. et al. | IEEE | 1999