Multi-band architecture for DWDM rings
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United States of America Patent
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Issued Date -
Dec 1, 2005
app pub date -
May 13, 2005
filing date -
May 13, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An optical architecture to simplify optical link engineering and network upgrades for WDM OADM rings is described. Each access site that is joined to an optical transmission medium is provided with a multi-band filter structure that is designed to add/drop all bands in the hubbed ring. In this way bands can be added to the ring without necessitating the re-engineering of the system. The approach is cost effective and more power efficient than the prior art single band filter structures.
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