Simultaneous demultiplexing and clock recovery using a single electroabsorption modulator in a novel bi-directional configuration

Ian Phillips, A. Gloag, D.G. Moodie, Nick Doran, Ian Bennion, Andrew Ellis

Research output: Contribution to journalArticle


A single electroabsorption modulator was used to demultiplex a 10 Gbit/s channel from a 40 Gbit/s OTDM data stream, whilst simultaneously recovering the 10 GHz electrical clock. This was achieved using a new bi-directional operation of the EA modulator, combined with a simple phase-locked loop feedback circuit. Excellent system performance was achieved, indicating that operation up to and beyond 100 Gbit/s is possible using current technology.
Original languageEnglish
Pages (from-to)101-105
Number of pages5
JournalOptics Communications
Issue number1-6
Publication statusPublished - 1 May 1998



  • clock recovery
  • OTDM demultiplexing
  • phase-locked-loop
  • electroabsorption modulator

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