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. 30, 2016
Filed:
Mar. 05, 2013
Nikon Corporation, Tokyo, JP;
Yasutoshi Takada, Kawasaki, JP;
NIKON CORPORATION, Tokyo, JP;
Abstract
A laser device includes: a laser light output unit that outputs a fundamental wave laser light; a wavelength conversion unit that performs wavelength conversion of the fundamental wave laser light and outputs a converted laser light; an output detector that detects a power of the converted laser light; a power feedback circuit that controls the power of the fundamental wave laser light such that the power of the converted laser light is in constant; a phase matching adjustment configuration that adjusts a quantity of state at the wavelength conversion optical element; and a phase matching control circuit that controls an operation the phase matching adjustment configuration, wherein in a state that the power of the converted laser light is controlled in constant, the phase matching control circuit adjust the quantity of state in a predetermined range such that the power of the fundamental wave laser light is minimized.