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. 09, 2025
Filed:
Mar. 31, 2022
Phosertek Corporation, Hsinchu, TW;
Lih-Ren Chen, Hsinchu, TW;
Kuo-Bin Hong, Hsinchu, TW;
Tien-Chang Lu, Hsinchu, TW;
Chien-Hung Lin, Hsinchu, TW;
Hsiu-Ling Chen, Hsinchu, TW;
Kuan-Chih Huang, Hsinchu, TW;
Phosertek Corporation, Hsinchu, TW;
Abstract
A photonic crystal surface emitting laser device including at least one photonic crystal surface emitting laser unit is provided. The photonic crystal surface emitting laser unit includes a light-emitting layer, a photonic crystal layer, a doped semiconductor layer, and a diffractive grating. The light-emitting layer is configured to emit a light beam. The photonic crystal layer is disposed on one side of the light-emitting layer. The doped layer is disposed on another side of the light-emitting layer. The diffractive grating is disposed on the photonic crystal layer or the doped semiconductor layer.