• DocumentCode
    1323807
  • Title

    TE-TM mode splitter with heterogeneously coupled Ti-diffused and Ni-diffused waveguides on Z-cut lithium niobate

  • Author

    Twu, Ruey-Ching ; Huang, Chin-Chili ; Wang, Way-Seen

  • Author_Institution
    Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
  • Volume
    36
  • Issue
    3
  • fYear
    2000
  • fDate
    2/3/2000 12:00:00 AM
  • Firstpage
    220
  • Lastpage
    221
  • Abstract
    A coupling type mode splitter with an extraordinary polarisation and a random polarisation waveguide made by Ni and Ti indiffusion, respectively, on a Z-cut LiNbO3 substrate is described for the first time. With optimised process parameters: a very small TM mode profile mismatch is obtained due to the similar characteristics of the Ti- and Ni-diffused waveguides. The measured extinction ratios of the TE and TM modes at 1.55 μm wavelength are >22 dB
  • Keywords
    diffusion; integrated optics; lithium compounds; optical beam splitters; optical communication equipment; optical waveguides; optimisation; substrates; 1.55 mum; LiNbO3; Ni-diffused waveguides; TE modes; TE-TM mode splitter; TM modes; Z-cut LiNbO3 substrate; heterogeneously coupled Ti-diffused waveguides; measured extinction ratios; optimised process parameters; small TM mode profile mismatch;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20000224
  • Filename
    836546
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1323807