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Optical switching in dense wavelength division multiplexing (DWDM) fiber access nodes

  • US 20020114036A1
  • Filed: 02/22/2001
  • Published: 08/22/2002
  • Est. Priority Date: 02/22/2001
  • Status: Abandoned Application
First Claim
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1. An optical switching system, comprising:

  • a plurality of input optical channels capable of receiving optical signals carrying internet traffic;

    a plurality of output optical channels capable of transmitting optical signals carrying internet traffic;

    an optical switch matrix having first and second pluralities of input ports and first and second pluralities of output ports, the first plurality of input ports connected to the input optical channels, the first plurality of output ports connected to the output optical channels;

    a plurality of fixed wavelength laser modulators connected to the second plurality of output ports of the optical switch matrix; and

    a wavelength multiplexer having a multiple-wavelength port and first and second pluralities of single-wavelength ports, the first plurality of single-wavelength ports connected to the second plurality of fixed wavelength laser modulators, the second plurality of single-wavelength ports connected to the second plurality of input ports of the optical switch matrix.

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