A Terahertz Optical Asymmetric Demultiplexer (TOAD)

J. P. Sokoloff, P. R. Prucnal, I. Glesk

Research output: Contribution to journalArticlepeer-review

646 Scopus citations


We present a new device capable of demultiplexing Tb/s pulse trains. It requires less than one picojoule of switching energy and can be integrated on a chip. The device consists of an optical nonlinear element asymmetrically placed in a short fiber loop. Its switching time is determined by the off-center position of the nonlinear element within the loop, and therefore it can use the strong, slow optical nonlinearities found in semiconductors, which all other fast demultiplexers seek to avoid. We demonstrate the switch's operation at 50 Gb/s using 600 fJ control pulses.

Original languageEnglish (US)
Pages (from-to)787-790
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number7
StatePublished - Jul 1993

All Science Journal Classification (ASJC) codes

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


Dive into the research topics of 'A Terahertz Optical Asymmetric Demultiplexer (TOAD)'. Together they form a unique fingerprint.

Cite this