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Optical scanning and imaging systems based on dual pulsed laser systems

  • US 9,252,560 B2
  • Filed: 04/08/2014
  • Issued: 02/02/2016
  • Est. Priority Date: 03/06/2009
  • Status: Expired due to Fees
First Claim
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1. A laser based system for generating optical pulses with a time varying time delay, said system comprising:

  • an optical source, said source comprising;

    at least one mode locked oscillator, said source generating optical pulses at a time-varying repetition rate, said optical pulses characterized by having a frequency comb spectrum comprising first and second individual frequency combs, wherein each of said individual frequency combs comprise frequency teeth separated in frequency, and wherein said optical pulses propagate in a common propagation path;

    a repetition rate controller configured to modulate said repetition rate at a modulation rate; and

    an optical reference comprising one or more single frequency lasers, said optical reference configured to monitor or control at least one of a time varying difference in repetition rate δ

    or a difference in carrier envelope offset frequency, Δ

    fceo, between said individual frequency combs, said optical-reference generating an output reference signal and comprising at least one optical element configured for generating a first beat signal between an output reference signal and a frequency tooth of said first comb, and a second beat signal between an optical reference signal and a frequency tooth of said second comb.

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