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:
Feb. 18, 2020
Filed:
Mar. 14, 2019
Applicant:
Nlight, Inc., Vancouver, WA (US);
Inventors:
David Martin Hemenway, Beaverton, OR (US);
David C. Dawson, Brush Prairie, WA (US);
Wolfram Urbanek, Camas, WA (US);
Assignee:
nLIGHT, Inc., Vancouver, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/28 (2006.01); G02B 6/32 (2006.01); G02B 27/09 (2006.01); H01S 5/40 (2006.01); G02B 19/00 (2006.01); G02B 6/42 (2006.01); G02B 27/12 (2006.01); G02B 27/30 (2006.01); H01S 5/00 (2006.01); H01S 5/022 (2006.01);
U.S. Cl.
CPC ...
G02B 6/32 (2013.01); G02B 6/425 (2013.01); G02B 6/4206 (2013.01); G02B 19/0009 (2013.01); G02B 19/0014 (2013.01); G02B 19/0052 (2013.01); G02B 19/0057 (2013.01); G02B 27/0955 (2013.01); G02B 27/0966 (2013.01); G02B 27/123 (2013.01); G02B 27/30 (2013.01); H01S 5/4012 (2013.01); H01S 5/005 (2013.01); H01S 5/0071 (2013.01); H01S 5/02284 (2013.01);
Abstract
Beam compressors include separated surfaces having positive and negative optical powers. A surface spacing is selected so that a collimated beam input to the beam compressor is output as a collimated beam. In some examples, beam compressors are situated to compress a laser beam stack that includes beams associated with a plurality of laser diodes. Beam compression ratios are typically selected so that a compressed beam stack focused into an optical waveguide has a numerical aperture corresponding to the numerical aperture of the optical waveguide.