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. 17, 2012
Filed:
Jan. 29, 2010
Osamu Maeda, Kanagawa, JP;
Yuji Masui, Kanagawa, JP;
Masaki Shiozaki, Kanagawa, JP;
Susumu Sato, Kanagawa, JP;
Takahiro Arakida, Kanagawa, JP;
Osamu Maeda, Kanagawa, JP;
Yuji Masui, Kanagawa, JP;
Masaki Shiozaki, Kanagawa, JP;
Susumu Sato, Kanagawa, JP;
Takahiro Arakida, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A laser diode allowed to stabilize the polarization direction of laser light in one direction is provided. The laser diode includes a laminate configuration including a lower multilayer reflecting mirror, an active layer and an upper multilayer reflecting mirror in order from a substrate side, in which the laminate configuration includes a columnar mesa section including an upper part of the lower multilayer reflecting mirror, the active layer and the upper multilayer reflecting mirror, and the lower multilayer reflecting mirror includes a plurality of pairs of a low refractive index layer and a high refractive index layer, and a plurality of oxidation layers nonuniformly distributed in a direction rotating around a central axis of the mesa section in a region except for a central region of one or more of the low refractive index layers.