Reconfigurable optical add-drop multiplexers with servo control and dynamic spectral power management capabilities

CAFC
  • US RE42,678 E1
  • Filed: 06/15/2010
  • Issued: 09/06/2011
  • Est. Priority Date: 03/19/2001
  • Status: Active Grant
First Claim
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1. A wavelength-separating-routing apparatus, comprising:

  • a) multiple fiber collimators, providing an input port for a multi-wavelength optical signal and a plurality of output ports;

    b) a wavelength-separator, for separating said multi-wavelength optical signal from said input port into multiple spectral channels;

    c) a beam-focuser, for focusing said spectral channels into corresponding spectral spots; and

    d) a spatial array of channel micromirrors positioned such that each channel micromirror receives one of said spectral channels, said channel micromirrors being pivotal about two axes and being individually and continuously controllable to reflect said corresponding received spectral channels into any selected ones of said output ports and to control the power of said received spectral channels coupled into said output ports.

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