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. 31, 2017
Filed:
May. 02, 2016
Tokyo Institute of Technology, Tokyo, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Fumio Koyama, Tokyo, JP;
Hamed Dalir, Tokyo, JP;
Takashi Kondo, Ebina, JP;
Naoki Jogan, Ebina, JP;
Kazutaka Takeda, Ebina, JP;
Hideo Nakayama, Ebina, JP;
TOKYO INSTITUTE OF TECHNOLOGY, Tokyo, JP;
FUJI XEROX CO., LTD., Tokyo, JP;
Abstract
A vertical-cavity surface-emitting laser diode includes: a first resonator that has a plurality of semiconductor layers comprising a first current narrowing structure having a first conductive region and a first non-conductor region; a first electrode that supplies electric power to drive the first resonator; a second resonator that has a plurality of semiconductor layers comprising a second current narrowing structure having a second conductive region and a second non-conductive region and that is formed side by side with the first resonator, the second current narrowing structure being formed in same current narrowing layer as the layer where the first current narrowing structure is formed; and a coupling portion as defined herein; and an equivalent refractive index of the coupling portion is smaller than an equivalent refractive index of each of the first resonator and the second resonator.