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:
Dec. 08, 2015
Filed:
Jul. 19, 2011
Stéphane Branly, Brieres-les-Scelles, FR;
Christophe Derycke, Paris, FR;
Sébastien Laux, Palaiseau, FR;
Stéphane Branly, Brieres-les-Scelles, FR;
Christophe Derycke, Paris, FR;
Sébastien Laux, Palaiseau, FR;
Thales, Courbevoie, FR;
Abstract
A device for amplifying a laser beam along an axis comprises: an amplifying bar structure of index n, delimited by a surface connecting the input and output faces of the structure, having a dimension e along the axis and Φ along a perpendicular direction, with e<Φ, and intended to be pumped to become a gain medium with a maximum along a face, and a liquid of index nwhich surrounds the structure in relation to its surface and which is absorbent or scattering at the fluorescence wavelength of the amplifying bar structure. The surface comprises a first tooth in the form of a chamfer at its junction with the maximum gain face, to avoid causing parasitic transverse lasing and the liquid of index nhas a heat capacity of greater than 3000 Joules per kilogram per K° to dissipate the thermal power induced by the pumping.