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:
Oct. 21, 2003
Filed:
Feb. 16, 1999
Nobuaki Ueki, Nakai-machi, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A surface emitting semiconductor laser and a method for manufacturing a surface emitting semiconductor laser array which are capable of controlling the polarization plane of a laser beam in constant direction and obtaining a low threshold current are provided. The surface emitting semiconductor laser is provided with a first reflection mirror layer of the first conduction type formed on the main plane of a semiconductor substrate, an active layer having a quantum well laminated above the first reflection mirror layer, a post having a second reflection mirror layer of the second conduction type different from the first conduction type for constituting an resonator structure together with the first reflection mirror, and plurality of peripheral high resistance layers having the periphery of high resistance inserted between the first reflection mirror layer and the second reflection mirror layer, and which plurality of peripheral high resistance layers are different from each other in proportion of non-high resistance in the plane parallel to the main plane of the semiconductor substrate.