Gigahertz-rate optical modulation on mach-zehnder plzt electro-optic modulators formed on silicon substrates by aerosol deposition

Takanori Shimizu, Masafumi Nakada, Hiroki Tsuda, Hiroshi Miyazaki, Jun Akedo, Keishi Ohashi

Research output: Contribution to journalArticle

3 Citations (Scopus)


Mach-Zehnder (MZ) lanthanum-modified lead-zirconatetitanate (PLZT) electro-optic modulators were fabricated on a silicon substrate by aerosol deposition. The fabricated modulator has a reversed-ridge-waveguide structure (with a 1.8-μm-wide ridge) and electrodes for applying a voltage perpendicular to the PLZT core layer. The modulator also has an MZ interferometer structure in which the device length and the electrode length of phase shifter are 1.5mm and 500μm, respectively. Optical-characteristics measurements showed that the 2-GHz optical output signal was produced by the modulator. The optical performance proves the validity of using the modulators on silicon substrates for on-chip optical interconnects.

Original languageEnglish
Pages (from-to)1669-1675
Number of pages7
Journalieice electronics express
Issue number23
Publication statusPublished - 2009 Dec 30



  • Aerosol deposition
  • Mach-zehnder interferometer
  • Optical modulator
  • Plzt

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this