Summary form only given. Optical transport layers need rearrangeable wavelength-division multiplexing optical cross-connects (OXCs) to increase the capacity and flexibility of the network. It has previously been shown that a cross-connect based on all-optical wavelength converters for routing as well as wavelength slot interchanging can be used to create a robust and nonblocking OXC. However, for an OXC with n fiber inlets each carrying m wavelengths the OXC requires n/spl times/m internal wavelengths, which constrains the size of the cross-connect. In this paper we therefore propose and demonstrate an architecture that uses a reduced set of internal wavelengths without sacrificing cross-connecting capabilities. By inserting a partly equipped OXC with the new architecture in a 10-Gbit/s re-circulating loop setup we demonstrate the possibility of cascading up to ten OXCs. Furthermore, we investigate the regenerating effect of the OXC on signals that suffer from interferometric crosstalk.


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    Title :

    WDM cross-connect cascade based on all-optical wavelength converters for routing and wavelength slot interchanging using a reduced number of internal wavelengths


    Contributors:
    Pedersen, R.J.S. (author) / Mikkelsen, B. (author) / Jorgensen, B.F. (author) / Nissov, M. (author) / Wunstel, K. (author) / Daub, K. (author) / Lach, E. (author) / Laube, G. (author) / Schilling, M. (author) / Doussiere, P. (author)


    Publication date :

    1998-01-01


    Size :

    242249 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English