Ultrafast all-optically controlled 2×2 crossbar switch

I. Glesk, K. Il Kang, P. R. Prucnal

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

8 Citations (Scopus)
130 Downloads (Pure)


All-optical packet switching using all-optical routing control, where both ultrafast address recognition and routing of photonic packets were all optically performed on a header with 4 picosecond bit period, was demonstrated. Packets were self-routed through a node with no need for optoelectronic conversion. Terahertz optical asymmetric demultiplexer (TOAD) was used as an optically controlled 2×2 routing switch and as an all optical routing controller. TOAD read the individual address bits in the tightly compressed packet header and set the state of the routing switch. The bit-error rate at the switching element was measured to be less than 10-9.

Original languageEnglish
Title of host publicationLasers and Electro-Optics Society Annual Meeting, 1996
Subtitle of host publicationLEOS 96
Place of PublicationPiscataway, NJ, United States
Number of pages2
ISBN (Print)0780331605
Publication statusPublished - 1 Dec 1996


  • LiNbO3 all-optical device
  • TOAD
  • terahertz optical asymmetric demultiplexer
  • ultrafast all-optical routing controller


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