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Methods for precision optical frequency synthesis and molecular detection

  • US 9,097,656 B2
  • Filed: 03/27/2013
  • Issued: 08/04/2015
  • Est. Priority Date: 03/29/2012
  • Status: Expired due to Fees
First Claim
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1. A laser system, comprising:

  • a laser source generating a cw output beam at an optical emission frequency;

    a frequency comb source to generate a frequency comb;

    a detection system that receives a portion of said cw beam and a portion of said frequency comb, said detection system configured to generate a beat signal representative of a frequency difference between a line of the frequency comb and the optical emission frequency of the cw output beam;

    a stabilizer operatively connected to said detection system to stabilize said beat signal and said cw optical emission frequency; and

    a frequency shifter disposed downstream from said laser source, the frequency shifter receiving a portion of said cw output beam as an optical input and a frequency shifted beat signal as an electrical input,wherein said frequency shifter generates a line narrowed and frequency shifted cw laser output, said frequency shifter being driven by a signal derived from said beat signal in a feedforward configuration.

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