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:
Jul. 02, 2013
Filed:
Aug. 23, 2010
Masahiro Yoshikawa, Kanagawa, JP;
Hideo Nakayama, Kanagawa, JP;
Masahiro Yoshikawa, Kanagawa, JP;
Hideo Nakayama, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A vertical cavity surface emitting laser that includes: a substrate; a first reflector of a first conductive type formed on the substrate; an active region formed on the first reflector; a second reflector of a second conductive type formed on the active region; and a current confining layer formed between the first reflector and the second reflector; and a metallic electrode that is formed on the second reflector, and is electrically connected to the second reflector. A conductive region with an anisotropy where a length in a longitudinal direction is different from a length in a short direction is formed in the current confining layer, and an opening defining a beam aperture is formed in the metallic electrode, and a diameter of the opening in the longitudinal direction is smaller than the length of the conductive region in the longitudinal direction.