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:
Oct. 26, 2021
Filed:
May. 29, 2019
Applicant:
Visual Photonics Epitaxy Co., Ltd., Taoyuan, TW;
Inventors:
Assignee:
VISUAL PHOTONICS EPITAXY CO., LTD., Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/02 (2006.01); H01S 5/34 (2006.01); H01S 5/125 (2006.01);
U.S. Cl.
CPC ...
H01S 5/3407 (2013.01); H01S 5/0206 (2013.01); H01S 5/125 (2013.01); H01S 2301/173 (2013.01);
Abstract
A laser diode is provided, including at least a defect blocking layer deposited between the GaAs substrate and the active layer, so that the crystal defects of the GaAs substrate can be blocked or reduced from propagation to the active layer when the epitaxial layer is formed on the GaAs substrate. As such, the crystal quality of the active layer can be improved, thereby improving the reliability and optical property of the laser diode.