All-optical exchange structure with extensible multicast function

The invention exchange structure is composed of the 2N entries of the erbium-doped optical fiber amplifier, the N entries of the 1XM optical wave length division demultiplexer, the MN entries 1XN internal multicast module and the N entries of MNX1 optical mixer. Here, N is numer of the input and out...

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Bibliographic Details
Main Authors LIHUA LU, SHILIN XIAO, QINGJI ZENG
Format Patent
LanguageEnglish
Published 12.03.2003
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
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Summary:The invention exchange structure is composed of the 2N entries of the erbium-doped optical fiber amplifier, the N entries of the 1XM optical wave length division demultiplexer, the MN entries 1XN internal multicast module and the N entries of MNX1 optical mixer. Here, N is numer of the input and outupt port supported by the exchange structure. M is the number of the wavelength channel possible totransfer by each port. The input signals through the fiber amplifier and demultiplexer are connected to the internal multicast modules respectively. The output of each internal multicast module through the different optical mixer and the fiber amplifier are connected to the output port of the exchange structure. The internal multicast module consists of the controllable optical switch etc combined neatly.
Bibliography:Application Number: CN2002136829