High-speed, low-driving-voltage dual-drive InP-based Mach-Zehnder modulator

Nobuhiro Kikuchi, Ken Tsuzuki, Takeshi Kurosaki, Yasuo Shibata, Hiroshi Yasaka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We present a dual traveling-wave electrode InP-based Mach-Zehnder (MZ) modulator with an n-i-n waveguide structure. An electrical input/output interface placed on one side of the chip helps us to drive the modulator in a push-pull configuration. This configuration provides the modulator with great advantages such as reduced driving voltage amplitude, chirp-free operation, and the ability to support advanced modulation formats. The fabricated modulator exhibits good performance. A 40 Gb/s non-return-to-zero (NRZ) signal is successfully generated with a low driving of 1.3 Vpp. In addition, a 10-Gb/s optical duobinary (DB) signal is successfully generated and transmitted over a 240-km single-mode fiber (SMF). We also developed a wavelength tunable transmitter hybrid integrated with a modulator with a wavelength tunable laser. Full C-band 10- Gb/s operation and a 100-km SMF transmission with a low power penalty are confirmed.

Original languageEnglish
Pages (from-to)205-211
Number of pages7
JournalIEICE Transactions on Electronics
Issue number2
Publication statusPublished - 2009


  • InP
  • Mach-zehnder modulator
  • N-i-n structure

ASJC Scopus subject areas

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


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