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Dynamic controller for a multi-channel optical amplifier

  • US 6,535,330 B1
  • Filed: 03/31/2001
  • Issued: 03/18/2003
  • Est. Priority Date: 03/31/2001
  • Status: Expired due to Fees
First Claim
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1. A dynamic controller for a multi-channel optical amplifier, comprising:

  • a variable optical attenuator coupled between an input and output of the amplifier;

    a control circuit connected to the variable optical attenuator for generating control signals instructing the attenuator of an amount that each channel should be attenuated;

    a gain controller connected to the control circuit for providing a signal indicative of an average amount of per channel attenuation necessary to achieve a selected gain set point, and a tilt controller connected to the control circuit for providing a signal indicative of relative amounts that different channels should be attenuated to reduce tilt, including a noise monitoring circuit.

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