• DocumentCode
    1112160
  • Title

    Broad-band distributed Bragg reflectors with photorefractive Ti : Cu : LiNbO3 waveguide gratings

  • Author

    Kostritskii, S.M. ; Tavlykaev, R.F. ; Ramaswamy, R.V. ; Korkishko, Yu.N. ; Fedorov, V.A.

  • Author_Institution
    Moscow Inst. of Electron. Technol., Russia
  • Volume
    16
  • Issue
    10
  • fYear
    2004
  • Firstpage
    2260
  • Lastpage
    2262
  • Abstract
    We have realized broad-band distributed Bragg reflectors with photorefractive gratings recorded at 441.6 nm in channel Ti : Cu : LiNbO3 waveguides. Proton-assisted copper exchange is used to enable a high level of copper doping and, thereby, achieve an extremely large modulation of refractive index (/spl ges/ 5/sup */10/sup -4/) within a photorefractive grating. Experimental structures demonstrate reflectivities up to 17% with full-width at half-maximum bandwidths in excess of 1.2 nm at center wavelengths around 1.55 μm.
  • Keywords
    copper; diffraction gratings; distributed Bragg reflectors; ferroelectric materials; integrated optics; lithium compounds; optical modulation; optical waveguides; photorefractive materials; reflectivity; refractive index; titanium; 441.6 nm; LiNbO/sub 3/:Ti,Cu; broad-band Bragg reflectors; copper doping; distributed Bragg reflectors; ferroelectric materials; integrated optics; photorefractive gratings; proton-assisted copper exchange; reflectivities; refractive index modulation; waveguide components; waveguide grating; Bandwidth; Bragg gratings; Copper; Distributed Bragg reflectors; Doping; Electrooptical waveguides; Narrowband; Optical waveguide components; Optical waveguides; Photorefractive effect;
  • fLanguage
    English
  • Journal_Title
    Photonics Technology Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1041-1135
  • Type

    jour

  • DOI
    10.1109/LPT.2004.834538
  • Filename
    1336896
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1112160