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. 08, 2013
Filed:
Apr. 20, 2007
Hiroshi Mori, Kawasaki, JP;
Takashi Nakayama, Yamato, JP;
Atsushi Yamada, Atsugi, JP;
Anritsu Corporation, Atsugi-shi, JP;
Abstract
The present invention provides a semiconductor light emitting element that can obtain oscillation at desired wavelengths. The semiconductor light emitting element comprises a semiconductor substrate, an active layerfor emitting and propagating light, which is formed in a stripe shape above the semiconductor substrate, buried layersformed on both lateral sides of the active layer, a cladding layerformed above the active layerand the buried layers, a first electrodeformed above the cladding layer, and a second electrodeformed below the semiconductor substrate. The active layeropens on one end facetamong the two end facets formed by cleavage so that the active layermakes a predetermined angle to the normal direction of the one end facet. A partially heating meansfor heating a predetermined length portion of the active layeralong the direction of light propagation is formed on a first electrode at a position thermally isolated from the one end facet