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:
Sep. 21, 2010
Filed:
Mar. 28, 2008
Applicants:
Takeo Kageyama, Tokyo, JP;
Norihiro Iwai, Tokyo, JP;
Yasumasa Kawakita, Tokyo, JP;
Keishi Takaki, Tokyo, JP;
Peter Nyakas, Budapest, HU;
Inventors:
Takeo Kageyama, Tokyo, JP;
Norihiro Iwai, Tokyo, JP;
Yasumasa Kawakita, Tokyo, JP;
Keishi Takaki, Tokyo, JP;
Peter Nyakas, Budapest, HU;
Assignee:
The Furukawa Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A surface emitting laser element includes an active layer and a dielectric multilayer mirror formed with a plurality of dielectric layers having different refractive indices for reflecting a light generated in the active layer. At least one of boundaries between the dielectric layers is formed to have a predetermined surface roughness to obtain a desired target reflectance of the dielectric multilayer mirror.