Resonant-type optical modulator with double-stub structure

Tetsuya Kawanishi, Yoshiro Matsuo, Masayuki Izutsu, Satoshi Oikawa, Kaoru Higuma

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A resonant-type Mach-Zehnder optical modulator was investigated. The electrode structure of the modulator consisted of a modulating electrode and two stubs. The modulating electrode was an asymmetric coplanar waveguide (ACPW) with two arms of the same length. Total impedance of the double-stub structure and the voltage on the modulating electrode were expressed in terms of the lengths, the propagation coefficients and the characteristic impedances of the modulating electrode. The difference of the induced phases of the two optical waveguides of the Mach-Zehnder structure was derived. The normalized induced phase of the fabricated modulator was found to have a peak of 2.65 at 10.59 GHz.

Original languageEnglish
Pages (from-to)184-185
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Publication statusPublished - 2001 Jan 1
Externally publishedYes

ASJC Scopus subject areas

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


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