Design of LiNbO3 optical modulator with an asymmetric resonant structure

Tetsuya Kawanishi*, Satoshi Oikawa, Kaoru Higuma, Masahide Sasaki, Masayuki Izutsu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


LiNbO3 optical modulators for band-operation with a resonant modulating electrode are investigated in this paper. We propose an asymmetric resonant structure consisting of two arms of modulating electrodes, where one arm is open-ended and the other arm is short-ended. The voltage standingwave was enhanced by the resonance of the electrodes, so that effective optical modulation was achieved, while the length of the modulating electrode was much shorter than the conventional travelingwave-type electrodes. The optical response at 6.2 GHz of a resonant modulator designed by maximizing the normalized induced phase was 4.94 of the response at dc with a non-resonant modulator.

Original languageEnglish
Pages (from-to)150-155
Number of pages6
JournalIEICE Transactions on Electronics
Issue number1 SPEC.
Publication statusPublished - 2002 Jan
Externally publishedYes


  • Asymmetric structure
  • Impedance matching
  • Optical modulator
  • Resonance
  • Waveguide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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