Apparatus and method for transferring optical data in optical switching system
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United States of America Patent
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Issued Date -
Oct 18, 2007
app pub date -
Jan 9, 2007
filing date -
Apr 14, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus and method for transferring optical data in an optical switching system are provided. When optical data input to a node are in contention, the optical data are converted from optical signals to electrical signals and temporarily stored. When an output resource is available, the stored optical data are converted to the available output resource and transmitted to a desired destination node. This overcomes the buffering depth limit that is observed when a conventional optical fiber delay line is used. Accordingly, an optical data loss rate can be reduced such that optical data can be efficiently transferred. Further, non-contending optical data are directly delivered to output resource by the switching unit, thereby reducing the cost of optical/electrical conversion and wavelength conversion and enabling the apparatus to be implemented at low cost.
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