LiNbO3 optical switch using asymmetric X-junction waveguide for broadband optical network node

Takuya Sakamaki, Yu Narita, Hiroyuki Tsuda, Shinya Nakajima, Tetsuya Kawanishi

Research output: Contribution to journalArticle

2 Citations (Scopus)


Broadband optical switches are required for a wave-length division multiplexed photonic network node. The wavelength dependency of the LiNbO3 optical switch characteristics are mainly attributed to the directional coupler section. An asymmetric X-junction was suitable for a broadband optical switch because it has flat spectral response over wide wavelength range and it is easy to fabricate. We have optimized the structure of an asymmetric X-junction and fabricated the 1×2 LiNbO3 optical switches using it. The optical switch showed broad band characteristics compared to the switch with a directional coupler.

Original languageEnglish
Pages (from-to)360-364
Number of pages5
JournalIEICE Electronics Express
Issue number5
Publication statusPublished - 2010 Mar 10
Externally publishedYes



  • LiNbO
  • Optical switch
  • X-branch

ASJC Scopus subject areas

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

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