• DocumentCode
    1254363
  • Title

    Interferometric polarization-independent modulator in LiTaO3

  • Author

    Jung, Hong-Sik ; Taylor, Henry F. ; Eknoyan, O.

  • Author_Institution
    Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
  • Volume
    8
  • Issue
    10
  • fYear
    1990
  • fDate
    10/1/1990 12:00:00 AM
  • Firstpage
    1452
  • Lastpage
    1455
  • Abstract
    Polarization-independent Mach-Zehnder modulators that utilize the off-diagonal r51 electrooptic coefficient are produced in LiTaO3. The waveguides are formed by Zn vapor diffusion. Extinction values of 85% at 0.633-μm wavelength are demonstrated for both transverse electric and transverse magnetic polarization using a single control voltage and thermal tuning. The relatively large voltage-length product values (VL⩾15 V-cm) attained in these devices are attributed to a weak overlap between optical and electrical field profiles. Electrode alignment and dielectric loading are critical factors for the optimization of device operation
  • Keywords
    electro-optical devices; integrated optics; light interferometers; light polarisation; lithium compounds; optical modulation; 0.633 micron; LiTaO3; Mach-Zehnder modulators; TE; TM; Zn; Zn vapor diffusion; dielectric loading; electrical field profiles; electrode alignment; interferometric modulators; off-diagonal r51 electrooptic coefficient; optical field profiles; polarization-independent modulator; single control voltage; thermal tuning; voltage-length product; waveguides; Electrodes; Electrooptic devices; Optical devices; Optical fiber polarization; Optical frequency conversion; Optical interferometry; Optical waveguides; Tellurium; Tensile stress; Voltage;
  • fLanguage
    English
  • Journal_Title
    Lightwave Technology, Journal of
  • Publisher
    ieee
  • ISSN
    0733-8724
  • Type

    jour

  • DOI
    10.1109/50.59180
  • Filename
    59180
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1254363