Optical switching system for switching opticals signals in wavelength groups

DC
  • US 6,882,800 B1
  • Filed: 11/02/2000
  • Issued: 04/19/2005
  • Est. Priority Date: 11/02/2000
  • Status: Active Grant
First Claim
Patent Images

1. An optical switching system comprising:

  • a first layer for switching optical channels;

    a second layer for switching a group of optical channels;

    a first coupler for grouping together optical channels of the first layer and coupling them to the second layer;

    a second coupler for ungrouping grouped optical channels of the second layer and coupling them to the first layer; and

    a third coupler for combining the grouped optical channels of the second layer.

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