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:
Jan. 27, 2009
Filed:
Aug. 09, 2006
Tatsuro Uchida, Machida, JP;
Yuichiro Hori, Yokohama, JP;
Mamoru Uchida, Yokohama, JP;
Kohei Okamoto, Menlo Park, CA (US);
Yasuhiro Nagatomo, Kawasaki, JP;
Tatsuro Uchida, Machida, JP;
Yuichiro Hori, Yokohama, JP;
Mamoru Uchida, Yokohama, JP;
Kohei Okamoto, Menlo Park, CA (US);
Yasuhiro Nagatomo, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A vertical cavity surface emitting laser device includes a first reflective mirror layer, a second reflective mirror layer, and an active layer disposed therebetween, wherein at least one of the first reflective mirror layer and the second reflective mirror layer includes a periodic-refractive-index structure in which the refractive index periodically changes in the in-plane direction and a part of the periodic-refractive-index structure includes a plurality of parts that disorder the periodicity.