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:
May. 19, 2009
Filed:
May. 22, 2007
Andrew J. W. Brown, Brier, WA (US);
Eric C. Honea, Seattle, WA (US);
Thomas H. Loftus, Seattle, WA (US);
Roy D. Mead, Edmonds, WA (US);
Charles E. Hamilton, Kenmore, WA (US);
Anping Liu, Big Flats, NY (US);
Charles A. Lemaire, Apple Valley, MN (US);
Andrew J. W. Brown, Brier, WA (US);
Eric C. Honea, Seattle, WA (US);
Thomas H. Loftus, Seattle, WA (US);
Roy D. Mead, Edmonds, WA (US);
Charles E. Hamilton, Kenmore, WA (US);
Anping Liu, Big Flats, NY (US);
Charles A. Lemaire, Apple Valley, MN (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
Apparatus and method for spectral-beam combining light from a plurality of high-power fiber lasers that, in some embodiments, use two substantially identical diffraction gratings in a parallel, mutually compensating configuration to combine a plurality of separate parallel input beams each having a slightly different successively higher wavelength into a single output beam of high quality. In other embodiments, a single diffraction grating is used to combine a plurality of different wavelengths, wherein the input laser beams are obtained from very narrow linewidth sources to reduce chromatic dispersion. In some embodiments, diagnostics and adjustments of wavelengths and/or positions and angles are made dynamically in real time to maintain the combination of the plurality input beams into a single high-quality output beam.