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:
Apr. 03, 2012
Filed:
Nov. 17, 2009
Masaki Funabashi, Tokyo, JP;
Masaki Funabashi, Tokyo, JP;
Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
A semiconductor laser elementaccording to the present invention comprises a waveguideof a high mesa type. And then such the waveguidecomprises an oblique end faceas an emitting facet that is different from a cleaved end face. And hence it becomes possible to reduce a reflection factor at the end face by making of such the oblique end face, and it becomes possible to design a direction of an emitting beam, that is to be emitting from the oblique end face, to be independent of that for the cleaved end faceas well. Moreover, the emitting beamis designed to be emitting as vertical to the cleaved end face. And then therefore in a case where an emitting beam from a semiconductor optical device is designed to be coupled with such as an optical fiber or another waveguide or the like, it is not necessary to device such as that the semiconductor laser elementis required to be arranged at a sub mount by being inclined to be oblique or the like.