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DIRECTIONLESS RECONFIGURABLE OPTICAL ADD-DROP MULTIPLEXER SYSTEMS AND METHODS

  • US 20090232497A1
  • Filed: 04/15/2008
  • Published: 09/17/2009
  • Est. Priority Date: 03/11/2008
  • Status: Active Grant
First Claim
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1. A directionless reconfigurable optical add-drop multiplexer, comprising:

  • an ingress device receiving a plurality of wavelengths from an input connection, wherein the ingress device is configured to provide one or more of the plurality of wavelengths on a first output and a second output;

    a splitter connected to the first output of the ingress device, wherein the splitter is configured to split the one or more of the plurality of wavelengths from the first output into multiple copies of the one or more of the plurality of wavelengths, and wherein the multiple copies are provided on a plurality of outputs;

    a switch connected to the plurality of outputs from the splitter and a plurality of tunable filters, wherein the switch is configured to switch each of the multiple copies to one or more of the plurality of tunable filters, wherein each of the plurality of tunable filters is configured to tune to a wavelength passband to provide a single output of the plurality of wavelengths; and

    an egress device receiving the second output.

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