The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2011
Filed:
May. 15, 2008
Thomas E. Drake, Jr., Fort Worth, TX (US);
Marc Dubois, Keller, TX (US);
Peter W. Lorraine, Niskayuna, NY (US);
John B. Deaton, Jr., Niskayuna, NY (US);
Robert Filkins, Niskayuna, NY (US);
Thomas E. Drake, Jr., Fort Worth, TX (US);
Marc Dubois, Keller, TX (US);
Peter W. Lorraine, Niskayuna, NY (US);
John B. Deaton, Jr., Niskayuna, NY (US);
Robert Filkins, Niskayuna, NY (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A compact high average power mid infrared range laser for ultrasound inspection. The laser comprises one of a Nd:YAG or Yb:YAG laser pumped by a diode at 808 nm to produce a 1 micron output beam. The 1 micron output beam is directed to an optical parametric oscillator where the beam wavelength is converted to 1.94 microns and conveyed to a mid infrared emission head. The emission head comprises one of a Ho:YAG or Ho:YLG laser optically coupled with a second optical parametric oscillator. The second optical parametric oscillator forms a generation output beam for creating ultrasonic displacements on a target. The generation output beam wavelength ranges from about 3 to about 4 microns, and can be 3.2 microns.