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Photonic wavelength shifting method

  • US 6,407,846 B1
  • Filed: 03/16/2001
  • Issued: 06/18/2002
  • Est. Priority Date: 03/16/2001
  • Status: Expired due to Fees
First Claim
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1. A method for providing a wavelength shifted and stabilized photonic signal, the method comprising:

  • providing a photonic input signal comprising at least one channel, each channel having a wavelength that is definable as a function of time;

    providing a modulation waveform configured to shift the wavelength of the photonic input signal;

    modulating the photonic input signal with the modulation waveform to shift the wavelength of each channel of the photonic input signal, thereby providing a photonic output signal comprising at least one channel, each channel having a wavelength that is definable as a function of time;

    providing a wavelength reference;

    comparing the wavelength reference with at least one channel of the photonic output signal to thereby providing an error signal configured to correct the wavelength of at least one channel of the photonic output signal;

    adjusting the modulation waveform in accordance with the error signal; and

    modulating the photonic input signal with the modulation waveform to correct the wavelength of the photonic output signal.

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