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Method and apparatus for generation of coherent frequency combs

  • US 8,451,528 B1
  • Filed: 12/21/2012
  • Issued: 05/28/2013
  • Est. Priority Date: 09/13/2012
  • Status: Active Grant
First Claim
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1. An apparatus for generating a frequency comb, the apparatus comprising:

  • an optical source providing a first optical wave characterized by a first center frequency and a first spectral linewidth;

    an optical modulator optically coupled to the optical source and operable to transform the first optical wave into at least two second optical waves that are phase-correlated with respect to each other and characterized by respective second center frequencies separated by a frequency spacing; and

    a nonlinear optical medium optically coupled to the optical modulator and operable to receive the at least two second optical waves and to output a plurality of third optical waves characterized by respective third center frequencies separated by the frequency spacing, wherein each of the plurality of third optical waves is characterized by the first spectral linewidth.

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