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:
Jul. 21, 2026
Filed:
Oct. 20, 2021
Sony Group Corporation, Tokyo, JP;
Rintaro Koda, Tokyo, JP;
Yasutaka Higa, Tokyo, JP;
Go Hirano, Tokyo, JP;
Shuhei Yamaguchi, Tokyo, JP;
Tatsuya Matou, Tokyo, JP;
Hideki Watanabe, Tokyo, JP;
SONY GROUP CORPORATION, Tokyo, JP;
Abstract
A surface emitting laser according to one embodiment of the present disclosure includes: a substrate having a convex part provided on a surface thereof; and a vertical resonator structure formed on the substrate, and including an active layer, a first semiconductor layer, and a current blocking layer. The first semiconductor layer is a semiconductor layer of a first conductivity type having a step structure part having a shape conforming to the convex part at a location facing the convex part. The current blocking layer is a semiconductor layer of a second conductivity type different from the first conductivity type and having an opening in which an inner peripheral surface is in contact with an outer peripheral surface of the step structure part.