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:
Nov. 19, 2019
Filed:
Dec. 15, 2015
Universite DE Montpellier, Montpellier, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Arnaud Garnache-Creuillot, Montpellier, FR;
Mikhael Myara, Sète, FR;
Isabelle Sagnes, Paris, FR;
Luc Le Gratiet, Sainte-Geneviève-des-Bois, FR;
Mohammed Sellahi, Montpellier, FR;
Mohammed Seghilani, Montpellier, FR;
Philippe Lalanne, Bordeaux, FR;
UNIVERSITE DE MONTPELLIER, Montpellier, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
Abstract
A laser device is provided for generating a helical-shaped optical wave and includes: (i) a gain region located between one first end defined by a first mirror and a second end defined by an exit region, (ii) a second mirror arranged so as to form with the first mirror an optical cavity including the gain region and a gap between the exit region and the second mirror, (iii) apparatus for pumping the gain region so as to generate the optical wave, wherein the laser device further includes at least one apparatus for shaping the light intensity and/or phase profiles of the optical wave and arranged for selecting at least one rotary-symmetrical transverse mode of the optical wave, the rotary-symmetrical transverse mode being chosen between those with a radial index equal to zero and with an azimuthal index being an integer with a module higher or equal to 1.