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.

Date of Patent:
Jan. 30, 2018

Filed:

Apr. 25, 2016
Applicant:

Nikon Corporation, Tokyo, JP;

Inventor:

Akira Tokuhisa, Tokyo, JP;

Assignee:

NIKON CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/067 (2006.01); G03F 7/20 (2006.01); H01S 3/10 (2006.01); H01S 3/23 (2006.01); H01S 3/16 (2006.01); H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
H01S 3/06754 (2013.01); G03F 7/70025 (2013.01); H01S 3/1003 (2013.01); H01S 3/10015 (2013.01); H01S 3/2391 (2013.01); H01S 3/0085 (2013.01); H01S 3/0092 (2013.01); H01S 3/1618 (2013.01);
Abstract

A laser device includes: a laser light source which generates a laser light in a pulse waveform of preset predetermined frequency; intensity modulator which is driven with a transmittance waveform wherein transmittance changes at either the predetermined frequency or an integer-multiple frequency thereof and which extracts and outputs the laser light which is outputted from the laser light source; control unit which controls an operation of the intensity modulator; an amplifier which amplifies the laser light which is outputted from the intensity modulator; and a wavelength conversion optical element which converts a wavelength of the laser light which is amplified by the amplifier, wherein the control unit changes relative timing of the transmittance waveform with respect to the pulse waveform, thereby changing the pulse waveform of the laser light which is emitted from the intensity modulator, to output a pulse light of predetermined waveform from the wavelength conversion optical element.


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