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:
Aug. 18, 2015
Filed:
May. 29, 2013
Applicants:
Igor Berishev, Holden, MA (US);
Vadim Chuyanov, Oxford, MA (US);
Alexey Komissarov, Charlton, MA (US);
Nikolai Strougov, Oxford, MA (US);
Inventors:
Igor Berishev, Holden, MA (US);
Vadim Chuyanov, Oxford, MA (US);
Alexey Komissarov, Charlton, MA (US);
Nikolai Strougov, Oxford, MA (US);
Assignee:
IPG PHOTONICS CORPORATION, Oxford, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/32 (2006.01); G02B 6/42 (2006.01); G02B 6/14 (2006.01); G02B 6/26 (2006.01); H01S 3/094 (2006.01); H01S 3/0941 (2006.01);
U.S. Cl.
CPC ...
G02B 6/32 (2013.01); G02B 6/4296 (2013.01); G02B 6/14 (2013.01); G02B 6/262 (2013.01); H01S 3/09415 (2013.01); H01S 3/094003 (2013.01); H01S 3/094053 (2013.01);
Abstract
An improved high power spatial filter, system and method. In the system, an optical fiber is disposed inside a ferrule channel structure, and the channel structure is aligned with a focusing lens system. The end of the fiber is at a distance D from the channel opening that faces the focusing lens system, and D is determined by the system's numeric aperture factor and the cladding thickness of the optical fiber.