Tapered multimode interference combiners for coherent receivers

Zhigang Wu*, Weigang Zhang, Zhi Wang, Guiyun Kai, Shuzhong Yuan, Xiaoyi Dong, Utaka Katsuyuki, Wada Yasuo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A new tapered multimode interference (MMI)-based coherent lightwave combiner is reported. A comprehensive theoretical analysis of mode behaviors in the tapered MMI waveguide is presented, and the output characteristics of the tapered MMI combiners with various structures are demonstrated. The combiner is fabricated on a silicon-on-insulator (SOI) substrate. Due to its advantages of having no end-facet reflection, easy extension to a multi-port configuration, high tolerance for fabrication errors, and compact size, the tapered MMI is a good candidate for a coherent lightwave combiner to be used in large-scale photonic integrated circuits.

Original languageEnglish
Pages (from-to)328-335
Number of pages8
JournalPan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors
Issue number2
Publication statusPublished - 2006 Feb


  • Combiner
  • Integrated optics
  • Multimode interference
  • Silicon-on-insulator

ASJC Scopus subject areas

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


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