Ultrafast all-optical photonic packet switching

Wing C. Kwong, Paul R. Prucnal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


The use of optical processing to perform switch-routing functions in photonic packet-switching networks prevents electronic data-flow bottlenecks and permits real-time routing of packets at very high speed. The architecture of a 2 × 2 photonic packet-switching node with optical packet generation, optical packet synchronization, optically-processed routing control, contention resolution (using deflection routing), and optical packet demultiplexing is presented. Terahertz optical asymmetric demultiplexers (TOADs), which allow ultrafast optical demultiplexing for terabit per second pulses with less than one picojoule switching energy, are utilized in the switch architecture. A two-channel optical demultiplexing experiment using the TOAD is reported, where two 2 ps, 100 Mbit/s pulse trains are extracted successfully from two time-multiplexed channels with a channel spacing of 40 ps.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsLeonid G. Kazovsky, Karen Liu
PublisherPubl by Society of Photo-Optical Instrumentation Engineers
Number of pages21
ISBN (Print)0819412732
StatePublished - 1993
Externally publishedYes

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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