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. 17, 2010
Filed:
Dec. 22, 2006
Olivier Parriaux, Saint-Etienne, FR;
Alexandre Tishchenko, Saint-Etienne, FR;
Nikolay Lyndin, Moscow, RU;
Jean-françois Bisson, Chofu, JP;
Olivier Parriaux, Saint-Etienne, FR;
Alexandre Tishchenko, Saint-Etienne, FR;
Nikolay Lyndin, Moscow, RU;
Jean-François Bisson, Chofu, JP;
Université Jean-Monnet, Saint-Etienne, FR;
Abstract
For increasing the power emitted by surface emitting lasers and for improving the spatial coherence of the laser beam, emitted in particular by disk lasers, microchip lasers and VCSELs having a relatively wide emitting area, the invention proposes to select a low order transverse cavity mode by means of a mirror structure () of high reflectivity, and of high angular selectivity. The mirror structure comprises a multilayer () receiving the optical beam () and a resonant grating mirror () following the multilayer and arranged for highly reflecting the optical beam in a narrow angular range at each side of a determined incidence angle.