Header separation and reinsertion for 10-Gbit/s variable-length optical packets

Antonios Hatziefremidis*, Efstratios Kehayas, Dimitris Tsiokos, George Theodore Kanellos, Leontios Stampoulidis, Hercules Avramopoulos

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review


We report an all-optical module that performs simultaneous header separation and reinsertion in 10-Gbit/s short optical packets of variable payload length and that consists of two subunits. The first uses a Fabry-Perot filter and an ultrafast nonlinear interferometer (UNI) to perform packet clock recovery. The second is a UNI gate configured as a 2 × 2 exchange bypass switch that is optically controlled by the recovered clock packets. Using fixed delays, the data packets and the locally generated headers are fed into the 2 × 2 switch, where header replacement is achieved.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalOptical Engineering
Issue number3
Publication statusPublished - 1 Mar 2005


  • Address extraction
  • All-optical clock recovery
  • Exchange-bypass switch
  • Optical packet switching
  • Optical routing
  • Ultrafast nonlinear interferometer (UNI)


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