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. 31, 2023

Filed:

Nov. 20, 2019
Applicant:

Mitsubishi Heavy Industries, Ltd., Tokyo, JP;

Inventor:

Koichi Hamamoto, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/042 (2006.01); H01S 3/04 (2006.01); H01S 3/06 (2006.01); H01S 3/094 (2006.01); H01S 3/16 (2006.01); H01S 3/08 (2006.01);
U.S. Cl.
CPC ...
H01S 3/042 (2013.01); H01S 3/0407 (2013.01); H01S 3/0604 (2013.01); H01S 3/0621 (2013.01); H01S 3/0625 (2013.01); H01S 3/08072 (2013.01); H01S 3/094 (2013.01); H01S 3/1643 (2013.01);
Abstract

A laser apparatus that can generate a high-quality laser beam is provided. The laser apparatus is provided with a laser medium and an insulation layer. The laser medium has a first surface and a second surface. Incident laser light is incident on the first surface. The second surface totally reflects the incident laser light that is incident to the second surface at an incident angle equal to or larger than a critical angle. The insulation layer covers a second area of the second surface that surrounds a first area of the second surface, the first area totally reflecting the incident laser light. The laser medium is exposed in the first area.


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