7×7 DMD-based diffractive fiber switch at 1550 nm

A. Miles, B. Lynn, P. A. Blanche, J. Wissinger, D. Carothers, L. Lacomb, R. A. Norwood, N. Peyghambarian

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We have implemented and tested a free-space diffraction-based non-blocking 7×7 switch built primarily using off-the-shelf components and a commercially available digital micro-mirror device (DMD). This DMD is capable of switching 100 times faster than currently available technologies. The switch is protocol and bit-rate agnostic, robust against random mirror failure, and provides the basic building block for a fully reconfigurable optical add drop multiplexer (ROADM). Our design offers the potential to address the growing need for high speed scalable circuit switching for data centers and optical networks.

Original languageEnglish (US)
Pages (from-to)41-45
Number of pages5
JournalOptics Communications
StatePublished - Jan 1 2015


  • Digital micromirror device (DMD)
  • Free-space optical switch
  • Optical cross connect
  • Reconfigurable hologram
  • Reconfigurable optical add drop multiplexing (ROADM)
  • Spatial light modulator (SLM)

ASJC Scopus subject areas

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


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