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SCALABLE LOAD-BALANCED INTERCONNECT SWITCH BASED ON AN OPTICAL SWITCH FABRIC HAVING A BANK OF WAVELENGTH-SELECTIVE SWITCHES

  • US 20090324243A1
  • Filed: 06/30/2008
  • Published: 12/31/2009
  • Est. Priority Date: 06/30/2008
  • Status: Abandoned Application
First Claim
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1. An optical interconnect switch, comprising:

  • an optical switch fabric (OSF) having N input ports and N output ports, where N is an integer greater than one, said OSF comprising;

    N 1×

    M wavelength-selective switches (WSSs), where M is an integer greater than one;

    N M×

    1 WSSs optically coupled to the N 1×

    M WSSs, wherein;

    each of said 1×

    M WSSs has an input port and M output ports, wherein the input ports of said N 1×

    M WSSs are the N input ports of the OSF;

    each of said M×

    1 WSSs has M input ports and an output port, wherein the output ports of said N 1×

    M WSSs are the N output ports of the OSF; and

    said OSF is adapted to route optical signals from said input ports to said output ports;

    one or more input line cards, each optically coupled to a corresponding input port of the OSF and adapted to generate up to N respective modulated optical signals based on a respective incoming signal, said up to N modulated optical signals being multiplexed and applied to said corresponding input port; and

    one or more output line cards, each optically coupled to a corresponding output port of the OSF and adapted to receive a respective optical output signal from said corresponding output port, said optical output signal having one or more spectral components corresponding to the multiplexed optical signals applied to the input ports of the OSF by said one or more input line cards.

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