Waveguide electrooptic grating coupler modulators operable under both single-mode and multimode conditions

Michael R. Wang, Guoda Xu

Research output: Contribution to journalConference article


We report here a new waveguide electrooptic grating coupler modulator based on a tooth-shaped modulation electrode structure and a single straight channel waveguide on an electrooptic substrate. An electrooptically-induced grating on the channel waveguide couples the propagating single or multimode lights into the substrate, and thus achieves intensity modulation of the guided modes. Both single-mode and multimode operations are possible. Preliminary experiments have demonstrated the effect of modulation on a proton exchanged LiNbO3 waveguide device. Modulation on other electrooptic waveguides are expected.

Original languageEnglish (US)
Pages (from-to)308-315
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Oct 21 1994
EventIntegrated Optics and Microstructures II 1994 - San Diego, United States
Duration: Jul 24 1994Jul 29 1994



  • Electrooptic
  • Grating Coupler
  • Integrated Optics
  • Multimode
  • Waveguide Modulators

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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