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Tunable Quantum Cascade Lasers And Photoacoustic Detection Of Trace Gases, TNT, TATP and Precursors Acetone And Hydrogen Peroxide

  • US 20110158270A1
  • Filed: 03/07/2011
  • Published: 06/30/2011
  • Est. Priority Date: 06/23/2006
  • Status: Abandoned Application
First Claim
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1. A method for obtaining power-maximized continuous tuning for a coupled cavity laser system, the steps comprising:

  • a) powering a source of multiwavelength laser light at a first power level;

    b) selectively reflecting said multiwavelength laser light in a cavity back to said source to select a first laser wavelength;

    c) adjusting a distance of said cavity to obtain a maximum output distance for said first laser wavelength and said first power level, said maximum output distance maximizing output of the laser system at said first laser wavelength;

    d) repeating steps b and c for other laser wavelengths to obtain sufficient data in to determine laser output peaks for said source at said first power level over a desired wavelength range; and

    e) determining a maximizing power level for each wavelength in said wavelength range;

    whereby the coupled cavity laser system operates at a maximum for a selected wavelength within said wavelength range by selecting said maximum output distance and said maximizing power level for said selected wavelength.

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