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. 21, 2018
Filed:
Sep. 05, 2017
Applicant:
Inter-university Research Institute Corp. National Institutes of Natural Sciences, Mitaka-shi, Tokyo, JP;
Inventors:
Takunori Taira, Okazaki, JP;
Vincent Yahia, Okazaki, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/08 (2006.01); H01S 3/06 (2006.01); H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
H01S 3/08018 (2013.01); H01S 3/0602 (2013.01); H01S 3/08059 (2013.01); H01S 5/005 (2013.01);
Abstract
Both of multi-mode laser beamA and excitation beamA for amplification are imputed to an amplification gain mediumin a relationship in which their optical axes match each other and an effective beam diameter of the excitation beam for amplification is smaller than an effective beam diameter of the multi-mode laser beam. As a result, laser beam of a part of modes progressing in a radiation range of the excitation beamA for amplification is selectively amplified. Laser beamA subjected to mode cleaning is thereby outputted.