Ultrasmall arrowhead arrayed-waveguide grating with v-shaped bend waveguides

Takanori Suzuki, Hiroyuki Tsuda

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The ultrasmall arrowhead arrayed-waveguide grating (AWG) with integrated waveguide mirrors has been proposed. The v-shaped bend waveguides, using integrated waveguide elliptic mirrors, were applied to the arrayed waveguide to reduce the AWG size. The small footprint leads to a low-cost waveguide device and decreases the phase error resulting from refractive index fluctuations. The eight-channel 40-GHz-spacing arrowhead AWG was fabricated from silica, with a refractive index difference of 0.75%. The size of this arrowhead AWG was 1.3 × 11.6 mm, being 1/10 of the size of the conventional one. The insertion loss and the adjacent crosstalk were 8.31 and - 28.3 dB, respectively.

Original languageEnglish
Pages (from-to)810-812
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number4
Publication statusPublished - 2005 Apr


  • Gratings
  • Integrated optics
  • Mirrors
  • Optical planar waveguides

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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