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IEEE Communications Magazine

Issue 3 • March 1989

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  • SONET: now it's the standard optical network

    Publication Year: 1989, Page(s):8 - 15
    Cited by:  Papers (124)  |  Patents (33)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (823 KB)

    The authors discuss aspects of the SONET (synchronous optical network) standards and standardization process, both national and international, that they consider to be of particular interest. Restricting their attention to the standard dealing with rates and formats, they consider the SONET signal hierarchy, overhead channels, multiplexing, STS-1 payload pointer, sub-STS-1 payloads, and optical in... View full abstract»

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  • Repeaterless undersea lightwave systems

    Publication Year: 1989, Page(s):16 - 21
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (678 KB)

    A repeaterless undersea lightwave system connects two terrestrial locations separated by the sea without the need for undersea regeneration of the optical signal. To achieve the longest span length possible, the system combines terrestrial terminals containing superior-performance optoelectronic devices with ultrareliable undersea cable technology. The lightwave technology used to achieve cost-eff... View full abstract»

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  • WDM applications in broadband telecommunication networks

    Publication Year: 1989, Page(s):22 - 30
    Cited by:  Papers (50)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1014 KB)

    Network applications of multichannel wavelength-division multiplexing (WDM) techniques are considered. The photonic technologies that will be critical to future systems using WDM are reviewed. Both interoffice and subscriber loop architectures that utilize the unique properties of WDM to achieve important advantages over more traditional network designs are presented. Several experimental demonstr... View full abstract»

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