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:
Sep. 03, 2013
Filed:
Feb. 03, 2011
Eitaro Ishimura, Tokyo, JP;
Kazuhisa Takagi, Tokyo, JP;
Keisuke Matsumoto, Tokyo, JP;
Takeshi Saito, Tokyo, JP;
Eitaro Ishimura, Tokyo, JP;
Kazuhisa Takagi, Tokyo, JP;
Keisuke Matsumoto, Tokyo, JP;
Takeshi Saito, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A semiconductor optical integrated element includes: a substrate; and a laser diode and a modulator which are integrated on the substrate. The laser diode includes an embedded waveguide having a core layer, both sides of which are embedded in a semiconductor material. The modulator includes a high-mesa ridge waveguide having a core layer, neither side of which is embedded in the semiconductor material. The core layers in the laser diode and the modulator are stripe-shaped.