METHOD AND APPARATUS FOR TRAFFICKING WAVELENGTHS OF DIFFERENT SPACINGS WITHIN AN OPTICAL NODE
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United States of America Patent
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Issued Date -
Jul 19, 2012
app pub date -
Jul 6, 2011
filing date -
Jan 14, 2011
priority date (Note) -
Abandoned
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Abstract
Fiber optic links can be used to support optical communications using wavelength division multiplexing (WDM) with different legacy, current, and future (non-legacy) WDM systems being characterized by channel spacing. An example of a legacy system can include WDM that employs a large number of channels and uses relatively narrow spacing between the channels, having a channel spacing of 100 GHz whereas today's current WDM systems have a narrower channel spacing of 50 GHz. Current systems and standards cannot support multiplexing of signals from different legacy and non-legacy WDM systems within the same network element without causing signal interference. Example embodiments of the present invention overcome the current problems by allowing for the handling and interconnection of differently spaced wavelengths within the same network element by employing hybrid components. As a result, networks employing embodiments of the present invention have reconfigurable, scalable, low cost interoperability of legacy and non-legacy WDM systems.
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