Summary form only given. The increase of the channels in wavelength-division multiplexing (WDM) in optical systems will make possible reconfigurable and transparent WDM networks, such as ring networks with wavelength-division add-drop multiplexer (WD-ADM). The most crucial issue for the WD-ADM system is the limitation of the cascaded-node count caused by passband-frequency misalignment of wavelength multiplexers/demultiplexers. For example, cascadability performance of an arrayed waveguide grating (AWG) spaced at 100-GHz interval is practically limited to several spans. In this paper, we propose a novel WD-ADM configuration using a single AWG and back-reflecting-type Er/sup 3+/-doped fiber amplifier (EDFA) gate switches, which improves the allowable cascaded-node count. The feasibility of the proposed WD-ADM configuration has been confirmed through experiments, and the cascadability of nodes has been estimated.


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    Title :

    Wavelength-division add/drop multiplexer using a single wavelength-filter and back-reflector switches


    Contributors:
    Shimomura, H. (author) / Shiragaki, T. (author) / Henmi, N. (author)


    Publication date :

    1998-01-01


    Size :

    516577 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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