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WAVELENGTH SELECTIVE SWITCH AND METHOD FOR CORRECTING DEVIATION OF WAVELENGTH

  • US 20120170930A1
  • Filed: 11/29/2011
  • Published: 07/05/2012
  • Est. Priority Date: 01/04/2011
  • Status: Active Grant
First Claim
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1. A wavelength selective switch comprising:

  • an input port and an output port;

    a wavelength demultiplexer that demultiplexes wavelength-multiplexed signal light into wavelengths in different optical paths;

    an optical-path controller that controls an array that has a plurality of switch elements, the plurality of switch elements switching all or a part of the wavelengths to be coupled from the input port to the output port; and

    an actuator driver that shifts the plurality of switch elements, based on a deviation of a center wavelength of a pass band from a reference wavelength.

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