• DocumentCode
    795594
  • Title

    A TE-TM mode splitter in LiNbO3 by proton exchange and Ti diffusion

  • Author

    Goto, Nobuo ; Yip, Gar Lam

  • Author_Institution
    Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
  • Volume
    7
  • Issue
    10
  • fYear
    1989
  • fDate
    10/1/1989 12:00:00 AM
  • Firstpage
    1567
  • Lastpage
    1574
  • Abstract
    A TE-TM mode splitter using branching waveguides made by proton exchange (PE) and Ti indiffusion (TI) in Z-cut LiNbO3 is proposed and designed using the coupled mode theory. The TE-TM mode splitting was experimentally verified, and extinction ratios of 20 dB and more than 20 dB were successfully achieved for TM and TE modes, respectively. The effective index of the PE waveguide was controlled through the PE and postannealing time at fixed temperatures. An equivalent device for two-way communication is suggested and discussed theoretically
  • Keywords
    diffusion in solids; integrated optics; ion exchange; lithium compounds; optical waveguides; optical workshop techniques; titanium; LiNbO3:Ti; TE-TM mode splitter; Ti diffusion; Z-cut LiNbO3; branching waveguides; coupled mode theory; effective index; extinction ratios; fixed temperatures; postannealing time; proton exchange; two-way communication; Integrated optics; Optical devices; Optical fiber sensors; Optical propagation; Optical sensors; Optical waveguides; Polarization; Protons; Tellurium; Temperature sensors;
  • fLanguage
    English
  • Journal_Title
    Lightwave Technology, Journal of
  • Publisher
    ieee
  • ISSN
    0733-8724
  • Type

    jour

  • DOI
    10.1109/50.39099
  • Filename
    39099
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=795594