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WDM cross-connects for core optical networks

  • US 20030138252A1
  • Filed: 01/18/2002
  • Published: 07/24/2003
  • Est. Priority Date: 01/18/2002
  • Status: Active Grant
First Claim
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1. An optical cross-connect switch for routing optical multiplexed signals in an optical transport network, comprising:

  • a plurality of signal splitters, each signal splitter having an input for receiving an optical multiplexed signal therein and a plurality of outputs, each signal splitter further operable to partition the optical multiplexed signal into a plurality of optical multiplexed signals;

    a plurality of wavelength selective devices connected to the plurality of signal splitters, such that a wavelength selective device is disposed at each output of each signal splitter, each wavelength selective device receiving an optical multiplexed signal therein and operable at different wavelengths to manipulate optical data signals embodied in the optical multiplexed signal; and

    a plurality of signal combiners connected to the plurality of wavelength selective devices, such that each signal combiner is adapted to receive an optical multiplexed signal via a wavelength selective device from each of the plurality of signal splitters, each signal combiner operable to pass the optical multiplexed signal to an outlet port of the switch.

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