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:
Jun. 29, 2021
Filed:
Dec. 28, 2017
Applicant:
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Inventor:
Mitsunobu Gotoda, Chiyoda-ku, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/02255 (2021.01); H01S 5/042 (2006.01); H01S 5/068 (2006.01); H01S 5/14 (2006.01); H01S 5/0234 (2021.01);
U.S. Cl.
CPC ...
H01S 5/02255 (2021.01); H01S 5/0234 (2021.01); H01S 5/04256 (2019.08); H01S 5/068 (2013.01); H01S 5/142 (2013.01);
Abstract
This variable wavelength laser device comprises a first semiconductor chip having first and second waveguides disposed in parallel, and a second semiconductor chip having an optical circuit optically connected to the first and second waveguides that, in conjunction with the first and second waveguides, constitute a resonator. Each of the first and second waveguides has two or more surface electrodes. The second semiconductor chip has a plurality of electrodes joined to the surface electrodes of the first and second waveguides.