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. 30, 2025
Filed:
Feb. 19, 2025
Applicant:
Hiefo Corporation, Alhambra, CA (US);
Inventors:
Henry A. Blauvelt, San Marino, CA (US);
Wei Hsin, Arcadia, CA (US);
Assignee:
HieFo Corporation, Alhambra, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/22 (2006.01); H01S 5/223 (2006.01); H01S 5/227 (2006.01);
U.S. Cl.
CPC ...
H01S 5/2205 (2013.01); H01S 5/22 (2013.01); H01S 5/223 (2013.01); H01S 5/2231 (2013.01); H01S 5/227 (2013.01);
Abstract
A semiconductor optical device includes n-doped, p-doped, and active layers, an optical waveguide structure, and drive current structure(s). The waveguide structure defines optical mode(s); the drive current structure defines a drive current path. One or both of those structures are arranged to result in a selected (or maximized) degree of overlap between lateral profiles of current density and optical intensity. The optical device can be arranged as a diode laser or optical amplifier.