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:
Mar. 26, 2024
Filed:
Jan. 09, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Yoshimichi Morita, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Provided here are: a laser diode section provided on a surface of an n-type InP substrate; a spot-size converter section provided on a surface of the n-type InP substrate, the spot-size converter section being composed of a core layer which causes emitted laser light to propagate therein, a p-type InP cladding layer on a front surface side of the core layer, an n-type InP cladding layer—on a back surface side of the core layer, n-type InP cladding layers provided on the both sides of the core layer, and a p-type InP cladding layer provided on respective surfaces of the p-type InP cladding layer and the first cladding layers; a window region provided on a surface of the n-type InP substrate—that is placed on a front-end side of the core layer; and a monitor PD as a monitor section provided on a surface of the window region.