Compact silica arrayed-waveguide grating with small bend radius utilizing trenches filled with low-refractive index material

Jiro Ito, Tom Yen Ting Fan, Takanori Suzuki, Hiroyuki Tsuda

Research output: Contribution to journalArticle

5 Citations (Scopus)


We present details of a local high-index contrast silica waveguide that uses trenches filled with a low-refractive index material enabling bends with small radius to be used. The lateral relative refractive index difference was 8.34% and the minimum bend radius was 300 μm. An 8-channel, 1.00 GHz spacing compact arrayed-waveguide grating using waveguides with small bend radius was successfully fabricated.

Original languageEnglish
Pages (from-to)499-503
Number of pages5
JournalIEICE Electronics Express
Issue number23
Publication statusPublished - 2006 Dec 10



  • Integrated optics
  • Planar lightwave circuit
  • Waveguide

ASJC Scopus subject areas

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

Cite this