Rectangularly configured 4 × 4 Ti: LiNbO3 matrix switch with low drive voltage.

Ippei Sawaki*, Toshio Shimoe, Hiroshi Nakamoto, Takeo Iwama, Takashi Yamane, Horochika Nakajima

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


A matrix switch with a novel architecture has been demonstrated. A rectangularly configured 4 × 4 switch has been designed and fabricated on a 65-mm-long z-cut Ti:LiNbO3 chip. The average drive voltage of 16Δ β-reversal directional couplers is 9 V for a cross state and 20 V for a bar state. The drive voltage difference of 11 V is about half that of the conventional matrix switch. Drive voltage deviations are within ±0.5 V. The average insertion loss is 4.7 dB, and deviations for different paths are within ±0.3 dB. The crosstalk of all crosspoint switches is also esitmated based on crosstalk output measurements.

Original languageEnglish
Pages (from-to)1267-1272
Number of pages6
JournalIEEE Journal on Selected Areas in Communications
Issue number7
Publication statusPublished - 1988 Aug
Externally publishedYes

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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