Low wavelength dependency design for MMI (multi-mode interference) mode converter

Yutaka Chaen, Kazuhiro Tanabe, Haisong Jiang, Kiichi Hamamoto

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Mode-division multiplexing (MDM) is widely researched, and we are researching mode converter by using multi-mode interference (MMI) waveguide. Wavelength division multiplexing (WDM) must be used in addition to the MDM, however, wavelength dependency exits for MMI in general as it works based on the interference of light. In this paper, we analyze the wavelength dependency of the MMI 0th to 1st mode-converter theoretically. As a result, we clarify the design scheme to suppress the wavelength dependency. Moreover, we show the sufficient performance of less than 1.0 dB in entire C-band for highly confined waveguide (Si/SiO2 waveguide) as a design example.

Original languageEnglish
Article number20150727
JournalIEICE Electronics Express
Issue number20
Publication statusPublished - Oct 8 2015

All Science Journal Classification (ASJC) codes

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


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