• DocumentCode
    1068726
  • Title

    Broad-band traveling-wave modulator using a LiNbO3optical waveguide

  • Author

    Izutsu, Masayuki ; Yamane, Yasukuni ; Sueta, Tadasi

  • Author_Institution
    Osaka University, Osaka, Japan
  • Volume
    13
  • Issue
    4
  • fYear
    1977
  • fDate
    4/1/1977 12:00:00 AM
  • Firstpage
    287
  • Lastpage
    290
  • Abstract
    A traveling-wave electrooptic phase modulator using a Ti-in-diffused LiNbO3optical waveguide was designed and constructed with emphasis placed on broad-band operation. As a microwave waveguide, a coplanar parallel stripline of aluminum with characteristic impedance of 48 Ω was fabricated on the crystal surface. The electrodes are 1.5 μm thick, 1 cm long, and 60 μm apart. The modulator was tested at 0.63 μm over a bandwidth of 7.5 GHz. For 250-mW drive power, the measured phase-modulation index was 1 rad up to about 3 GHz and reduced to 0.5 tad at 7.5 GHz.
  • Keywords
    Aluminum; Coplanar waveguides; Electrooptical waveguides; Optical design; Optical modulation; Optical waveguides; Phase modulation; Stripline; Surface impedance; Surface waves;
  • fLanguage
    English
  • Journal_Title
    Quantum Electronics, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9197
  • Type

    jour

  • DOI
    10.1109/JQE.1977.1069310
  • Filename
    1069310
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1068726