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:
Oct. 29, 2013

Filed:

Mar. 26, 2009
Applicants:

Koichi Kusukame, Osaka, JP;

Hiroyuki Furuya, Osaka, JP;

Kiminori Mizuuchi, Ehime, JP;

Tomoya Sugita, Nara, JP;

Akihiro Morikawa, Ehime, JP;

Nobuyuki Horikawa, Osaka, JP;

Kazuhisa Yamamoto, Osaka, JP;

Shinichi Kadowaki, Hyogo, JP;

Inventors:

Koichi Kusukame, Osaka, JP;

Hiroyuki Furuya, Osaka, JP;

Kiminori Mizuuchi, Ehime, JP;

Tomoya Sugita, Nara, JP;

Akihiro Morikawa, Ehime, JP;

Nobuyuki Horikawa, Osaka, JP;

Kazuhisa Yamamoto, Osaka, JP;

Shinichi Kadowaki, Hyogo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A laser light source includes a fundamental laser generator that generates a fundamental laser light, a wavelength conversion element that is made of a ferroelectric crystal with a periodically poled structure and converts the fundamental laser light to a laser light having a different wavelength, a holding member that holds at least a part of an element surface of the wavelength conversion element that crosses a polarization direction of the periodically poled structure, and an insulation layer that is provided between the holding member and the element surface. Electric resistivity of the insulation layer is 1×10Ω·cm or higher.


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