A 2.5 Gbit/s optical ATM cell synchronizer

H. J. Chao, L. Wu, Z. Zhang, S. H. Yang, L. M. Wang, Y. Chai, J. Y. Fan, J. P. Zhang, F. S. Choa

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

Abstract

Recent advance in dense wavelength multiplexing division (DWDM) technology has provided tremendous bandwidth on optical fiber communications [ 11. However, the capability of switching and routing information at this high bandwidth (e.g., 1 Terabids) has been behind the transmission capability. Building a large-capacity switching system using only electronic technology may potentially lead a system bottleneck in interconnecting many electronic devices or modules, mainly caused by enormous interconnection wires and electromagnetic interference among them. We have explored the possibility of switching ATM cells in optical domain by prototyping a WDM ATM Multicast (3M) switch [2]. By taking the advantages of both optical and electronic technologies, we have constructed two planes, optical switching plane and electronic control plane. ATM cells are routed through the optical switching plane, while their headers are extracted and processed in the electronic plane that controls the optical devices and routes the cells to proper output port(s). We have implemented and demonstrated a subsystem that performs the cell delineation based on ITU standards and overwrites VCWPI optically at 2.5 Gbids [3]. In this paper, we present our recent work on aligning the phases of incoming ATM cells in optical domain. The subsystem can adjust the phases of optical cells at 2.5 Gbith to a reference cell clock with the adjustment range of 1 to 5 11 bits and with a precision of ?A bit (or 100 ps). We have adopted a novel sampling method to achieve the 100 ps precision without using a 10 GHz clock.

Original languageEnglish (US)
Title of host publicationOFC/IOOC 1999 - Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communication
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages347-349
Number of pages3
ISBN (Electronic)155752582X, 9781557525826
DOIs
StatePublished - 1999
Event1999 Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communication, OFC/IOOC 1999 - San Diego, United States
Duration: Feb 21 1999Feb 26 1999

Publication series

NameOFC/IOOC 1999 - Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communication
Volume2

Other

Other1999 Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communication, OFC/IOOC 1999
CountryUnited States
CitySan Diego
Period2/21/992/26/99

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Chao, H. J., Wu, L., Zhang, Z., Yang, S. H., Wang, L. M., Chai, Y., Fan, J. Y., Zhang, J. P., & Choa, F. S. (1999). A 2.5 Gbit/s optical ATM cell synchronizer. In OFC/IOOC 1999 - Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communication (pp. 347-349). [766436] (OFC/IOOC 1999 - Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communication; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/OFC.1999.766436