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:
Dec. 03, 2013
Filed:
Sep. 05, 2012
Applicant:
Motoki Kakui, Yokohama, JP;
Inventor:
Motoki Kakui, Yokohama, JP;
Assignee:
Megaopto Co., Ltd., Wako-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The pulse light source comprises a seed light source, a first YbDF, a band-pass filter, a second YbDF, and a third YbDF, and has the MOPA structure. The band-pass filter inputs pulse light which is outputted from the seed light source and amplified by the first stage YbDF, and outputs, while separating a wavelength band of the inputted pulse light into a shorter wavelength side and a longer wavelength side with reference to a peak wavelength of the inputted pulse light, the attenuated pulse light after attenuating the optical power on one side more than the optical power on the other side between the shorter and longer wavelength sides.