Devices for terabit optical networks: an overview and trends

Ivan Glesk, Kung Li Deng, Paul R. Prucnal

Research output: Contribution to journalArticlepeer-review


Clock and data signals are separated from a 100 Gb/s self-clocked orthogonal time division multiplexing (OTDM) system using an ultrafast all-optical intensity-dependent switch. The recovered clock signal is 5 times larger than the input clock signal. This recovered clock signal has sufficient intensity to control a terahertz optical asymmetric demultiplexer (TOAD). The recovered clock can be used without additional amplification as the control signal, and the reflected signal as the data input to a TOAD. The processing is preformed at a relatively low energy of less than 200 fJ for both the clock extraction and demultiplexing. This all-optical scheme may be useful for emerging ultrafast OTDM networks.

Original languageEnglish
Pages (from-to)182-189
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Jan 1999
Event11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics - Stara Lesna, Slovakia
Duration: 21 Sep 1998 → …


  • Terahertz Optical Asymmetric Demultiplexer
  • routing switch
  • clock extractor
  • demultiplexer


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