Optical communications – Multiplex – Optical switching
Reexamination Certificate
2007-10-02
2007-10-02
Chan, Jason (Department: 2613)
Optical communications
Multiplex
Optical switching
C398S047000
Reexamination Certificate
active
10183111
ABSTRACT:
An intelligent photonic burst switching (PBS) module for use in a WDM optical switching network includes optical multiplexers and de-multiplexers, an optical receiver array, an optical transmitter array, a PBS fabric, and a control interface unit. The PBS module includes optical buffering in a form of tunable wavelength converters (TWCs) and variable time-delay optical circuits. The PBS module routes the received optical burst labels and network management control labels to the controller and optical burst data in a plurality of input lines, respectively. The optical output lines provide propagation paths for a plurality of TDM channels. More specifically, the controller processes the control signal and, responsive thereto, causes the PBS to route at least a portion of the data signal to one of the TDM channels. When the desired TDM channel is not available, the controller causes a TWC to effectively change the wavelength of at least a portion of the data signal.
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Blakely , Sokoloff, Taylor & Zafman LLP
Chan Jason
Intel Corporation
Wang Quan-Zhen
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