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:
Aug. 16, 2022
Filed:
Mar. 06, 2019
Applicant:
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Inventor:
Corrado Sciancalepore, Grenoble, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/183 (2006.01); H01S 5/343 (2006.01);
U.S. Cl.
CPC ...
H01S 5/18388 (2013.01); H01S 5/18311 (2013.01); H01S 5/3432 (2013.01); H01S 2301/16 (2013.01); H01S 2301/185 (2013.01);
Abstract
A light-emitting device includes a vertical-cavity surface-emitting laser, the resonant cavity of which is transverse multimode supporting transverse modes having rotational symmetry of order two about a main optical axis, and an index-contrast grating including a plurality of pads. The pads include: a central pad, a plurality of peripheral pads, which are periodically arranged along one or more lines that are concentric with respect to the central pad, and which are arranged so that the grating has, with respect to the main optical axis, a rotational symmetry of uneven order higher than or equal to three.