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:
Nov. 09, 2004
Filed:
Mar. 04, 2003
Nobuaki Ueki, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A surface emitting semiconductor laser includes a substrate on which a resonator is formed, the resonator including a lower reflection mirror, an active region, and an upper reflection mirror, a metal layer that is provided on the upper reflection mirror and has a first aperture that defines an outgoing region of laser light generated in the active region, and an optical confinement region that is provided between the metal layer and the lower reflection mirror and has a second aperture that defines a light emission region of the laser light. The second aperture has a diameter equal to or greater than 12 &mgr;m, and the first aperture has a diameter that is 1 to 5 &mgr;m smaller than that of the second aperture. The laser light emitted from the emitting region has a multimode including multiple orders selected within a predetermined wavelength range.