Array interconnection for rearrangeable 2-D MEMS optical switch

Teck Yoong Chai, Tee Hiang Cheng, Sanjay K. Bose, Chao Lu, Gangxiang Shen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

25 Citations (Scopus)


Two-dimensional (2-D) microelectromechanical systems (MEMS) optical switches can be constructed by arranging the MEMS-actuated micromirrors as an array. We consider here the switching capability, routing, and optimization of the rectangular array interconnection on which the capability and efficiency of 2-D MEMS switches depend. The switching capability of a rectangular array is proved analytically. Two routing algorithms, namely, the most-bend routing and the least-bend routing, are developed, which, respectively, maximize and minimize the number of 2 × 2 switches in the "bend" state. A method of counting the number of permutations realizable with a given number of switches in the "bend" state is proposed to evaluate the performance of both routing schemes. The understanding of the underlying interconnection pattern enables us to study the problem of constructing rearrangeable optical switches of arbitrary size.
Original languageEnglish
Pages (from-to)1134-1140
Number of pages7
JournalJournal of Lightwave Technology
Issue number5
Publication statusPublished - 1 May 2003
Externally publishedYes


  • Interconnection networks
  • Microelectromechanical systems (MEMS)
  • Optical switches
  • Optimization
  • Rearrangeable
  • Routing control

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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