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Laser system

  • US 7,920,616 B2
  • Filed: 10/30/2007
  • Issued: 04/05/2011
  • Est. Priority Date: 11/01/2005
  • Status: Active Grant
First Claim
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1. A laser light source comprising:

  • a seed laser system producing a seed laser output light pulse beam of pulses having a nominal center wavelength at a pulse repetition rate;

    a first gas discharge laser amplifier gain medium and a second gas discharge laser amplifier gain medium, each amplifier gain medium operating at a different pulse repetition rate than the seed laser system;

    a beam divider providing each of the respective first and second amplifier gain mediums with seed laser output light pulse beam output pulses; and

    a beam combining system combining the outputs of the respective amplifier gain mediums to provide a light source output laser light pulse beam having the pulse repetition rate of the seed laser;

    wherein the beam combining system comprises one or more pulse stretchers that receive the outputs of the respective amplifier gain mediums.

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