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Dual modulator wavelength-selective switch and equalizer

  • US 6,876,475 B1
  • Filed: 01/17/2003
  • Issued: 04/05/2005
  • Est. Priority Date: 01/17/2003
  • Status: Expired due to Term
First Claim
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1. A method for wavelength-selective switching and equalization of an incoming multiplexed signal the method comprising:

  • dispersing a plurality of wavelength components of the incoming multiplexed signal onto separate sections of a first controllable light modulator;

    controllably deflecting a first set of the wavelength components and controllably reflecting a second set of the wavelength components using the first controllable light modulator;

    mapping the wavelength components in the second set onto separate sections of a second controllable light modulator;

    equalizing the wavelength components in the first set by using the first controllable light modulator to control a first order diffraction magnitude for each of the wavelength components in the first set;

    suppressing the wavelength components in the first set by using the second controllable light modulator; and

    equalizing the wavelength components in the second set by using the second controllable light modulator to control a zero order diffraction magnitude for each of the wavelength components in the second set.

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